Optical image capturing system including five lenses of −+++−, ++++−, −+−−+, +−++− or +−+++ refractive powers

ABSTRACT

An optical image capturing system includes, along the optical axis in order from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, and a fifth lens. At least one lens among the first to the fifth lenses has positive refractive force. The fifth lens can have negative refractive force, wherein both surfaces thereof are aspheric, and at least one surface thereof has an inflection point. The lenses in the optical image capturing system which have refractive power include the first to the fifth lenses. The optical image capturing system can increase aperture value and improve the imaging quality for use in compact cameras.

BACKGROUND OF THE INVENTION 1. Technical Field

The present invention relates generally to an optical system, and more particularly to a compact optical image capturing system for an electronic device.

2. Description of Related Art

In recent years, with the rise of portable electronic devices having camera functionalities, the demand for an optical image capturing system is raised gradually. The image sensing device of the ordinary photographing camera is commonly selected from charge coupled device (CCD) or complementary metal-oxide semiconductor sensor (CMOS Sensor). In addition, as advanced semiconductor manufacturing technology enables the minimization of the pixel size of the image sensing device, the development of the optical image capturing system towards the field of high pixels. Therefore, the requirement for high imaging quality is rapidly raised.

The conventional optical system of the portable electronic device usually has three or four lenses. However, the optical system is asked to take pictures in a dark environment, in other words, the optical system is asked to have a large aperture. The conventional optical system could not provide a high optical performance as required.

It is an important issue to increase the amount of light entering the lens. In addition, the modern lens is also asked to have several characters, including high image quality.

BRIEF SUMMARY OF THE INVENTION

The aspect of embodiment of the present disclosure directs to an optical image capturing system and an optical image capturing lens which use combination of refractive powers, convex and concave surfaces of five-piece optical lenses (the convex or concave surface in the disclosure denotes the geometrical shape of an image-side surface or an object-side surface of each lens on an optical axis) to increase the amount of incoming light of the optical image capturing system, and to improve imaging quality for image formation, so as to be applied to minimized electronic products.

The terms and definitions thereof related to the lens parameters in the embodiments of the present invention are shown as below for further reference.

The lens parameter related to a length or a height in the lens:

A height for image formation of the optical image capturing system is denoted by HOI. A height of the optical image capturing system is denoted by HOS. A distance from the object-side surface of the first lens to the image-side surface of the fifth lens is denoted by InTL. A distance between the aperture and the image plane specifically for the infrared light is denoted by InS. A distance from the first lens to the second lens is denoted by IN12 (instance). A central thickness of the first lens of the optical image capturing system on the optical axis is denoted by TP1 (instance).

The lens parameter related to a material in the lens:

An Abbe number of the first lens in the optical image capturing system is denoted by NA1 (instance). A refractive index of the first lens is denoted by Nd1 (instance).

The lens parameter related to a view angle in the lens:

A view angle is denoted by AF. Half of the view angle is denoted by HAF. A major light angle is denoted by MRA.

The lens parameter related to exit/entrance pupil in the lens:

An entrance pupil diameter of the optical image capturing system is denoted by HEP. For any surface of any lens, a maximum effective half diameter (EHD) is a perpendicular distance between an optical axis and a crossing point on the surface where the incident light with a maximum viewing angle of the system passing the very edge of the entrance pupil. For example, the maximum effective half diameter of the object-side surface of the first lens is denoted by EHD11, the maximum effective half diameter of the image-side surface of the first lens is denoted by EHD12, the maximum effective half diameter of the object-side surface of the second lens is denoted by EHD21, the maximum effective half diameter of the image-side surface of the second lens is denoted by EHD22, and so on.

The lens parameter related to an arc length of the shape of a surface and a surface profile:

For any surface of any lens, a profile curve length of the maximum effective half diameter is, by definition, measured from a start point where the optical axis of the belonging optical image capturing system passes through the surface of the lens, along a surface profile of the lens, and finally to an end point of the maximum effective half diameter thereof. In other words, the curve length between the aforementioned start and end points is the profile curve length of the maximum effective half diameter, which is denoted by ARS. For example, the profile curve length of the maximum effective half diameter of the object-side surface of the first lens is denoted by ARS11, the profile curve length of the maximum effective half diameter of the image-side surface of the first lens is denoted by ARS12, the profile curve length of the maximum effective half diameter of the object-side surface of the second lens is denoted by ARS21, the profile curve length of the maximum effective half diameter of the image-side surface of the second lens is denoted by ARS22, and so on.

For any surface of any lens, a profile curve length of a half of the entrance pupil diameter (HEP) is, by definition, measured from a start point where the optical axis of the belonging optical image capturing system passes through the surface of the lens, along a surface profile of the lens, and finally to a coordinate point of a perpendicular distance where is a half of the entrance pupil diameter away from the optical axis. In other words, the curve length between the aforementioned stat point and the coordinate point is the profile curve length of a half of the entrance pupil diameter (HEP), and is denoted by ARE. For example, the profile curve length of a half of the entrance pupil diameter (HEP) of the object-side surface of the first lens is denoted by ARE11, the profile curve length of a half of the entrance pupil diameter (HEP) of the image-side surface of the first lens is denoted by ARE12, the profile curve length of a half of the entrance pupil diameter (HEP) of the object-side surface of the second lens is denoted by ARE21, the profile curve length of a half of the entrance pupil diameter (HEP) of the image-side surface of the second lens is denoted by ARE22, and so on.

The lens parameter related to a depth of the lens shape:

A displacement from a point on the object-side surface of the fifth lens, which is passed through by the optical axis, to a point on the optical axis, where a projection of the maximum effective semi diameter of the object-side surface of the fifth lens ends, is denoted by InRS51 (the depth of the maximum effective semi diameter). A displacement from a point on the image-side surface of the fifth lens, which is passed through by the optical axis, to a point on the optical axis, where a projection of the maximum effective semi diameter of the image-side surface of the fifth lens ends, is denoted by InRS52 (the depth of the maximum effective semi diameter). The depth of the maximum effective semi diameter (sinkage) on the object-side surface or the image-side surface of any other lens is denoted in the same manner.

The lens parameter related to the lens shape:

A critical point C is a tangent point on a surface of a specific lens, and the tangent point is tangent to a plane perpendicular to the optical axis and the tangent point cannot be a crossover point on the optical axis. By the definition, a distance perpendicular to the optical axis between a critical point C41 on the object-side surface of the fourth lens and the optical axis is HVT41 (instance), and a distance perpendicular to the optical axis between a critical point C42 on the image-side surface of the fourth lens and the optical axis is HVT42 (instance). A distance perpendicular to the optical axis between a critical point C51 on the object-side surface of the fifth lens and the optical axis is HVT51 (instance), and a distance perpendicular to the optical axis between a critical point C52 on the image-side surface of the fifth lens and the optical axis is HVT52 (instance). A distance perpendicular to the optical axis between a critical point on the object-side or image-side surface of other lenses the optical axis is denoted in the same manner.

The object-side surface of the fifth lens has one inflection point IF511 which is nearest to the optical axis, and the sinkage value of the inflection point IF511 is denoted by SGI511 (instance). A distance perpendicular to the optical axis between the inflection point IF511 and the optical axis is HIF511 (instance). The image-side surface of the fifth lens has one inflection point IF521 which is nearest to the optical axis, and the sinkage value of the inflection point IF521 is denoted by SGI521 (instance). A distance perpendicular to the optical axis between the inflection point IF521 and the optical axis is HIF521 (instance).

The object-side surface of the fifth lens has one inflection point IF512 which is the second nearest to the optical axis, and the sinkage value of the inflection point IF512 is denoted by SGI512 (instance). A distance perpendicular to the optical axis between the inflection point IF512 and the optical axis is HIF512 (instance). The image-side surface of the fifth lens has one inflection point IF522 which is the second nearest to the optical axis, and the sinkage value of the inflection point IF522 is denoted by SGI522 (instance). A distance perpendicular to the optical axis between the inflection point IF522 and the optical axis is HIF522 (instance).

The object-side surface of the fifth lens has one inflection point IF513 which is the third nearest to the optical axis, and the sinkage value of the inflection point IF513 is denoted by SGI513 (instance). A distance perpendicular to the optical axis between the inflection point IF513 and the optical axis is HIF513 (instance). The image-side surface of the fifth lens has one inflection point IF523 which is the third nearest to the optical axis, and the sinkage value of the inflection point IF523 is denoted by SGI523 (instance). A distance perpendicular to the optical axis between the inflection point IF523 and the optical axis is HIF523 (instance).

The object-side surface of the fifth lens has one inflection point IF514 which is the fourth nearest to the optical axis, and the sinkage value of the inflection point IF514 is denoted by SGI514 (instance). A distance perpendicular to the optical axis between the inflection point IF514 and the optical axis is HIF514 (instance). The image-side surface of the fifth lens has one inflection point IF524 which is the fourth nearest to the optical axis, and the sinkage value of the inflection point IF524 is denoted by SGI524 (instance). A distance perpendicular to the optical axis between the inflection point IF524 and the optical axis is HIF524 (instance).

An inflection point, a distance perpendicular to the optical axis between the inflection point and the optical axis, and a sinkage value thereof on the object-side surface or image-side surface of other lenses is denoted in the same manner.

The lens parameter related to an aberration:

Optical distortion for image formation in the optical image capturing system is denoted by ODT. TV distortion for image formation in the optical image capturing system is denoted by TDT. Further, the range of the aberration offset for the view of image formation may be limited to 50%-100% field. An offset of the spherical aberration is denoted by DFS. An offset of the coma aberration is denoted by DFC.

Transverse aberration on an edge of an aperture is denoted by STA, which stands for STOP transverse aberration, and is used to evaluate the performance of one specific optical image capturing system. The transverse aberration of light in any field of view can be calculated with a tangential fan or a sagittal fan. More specifically, the transverse aberration caused when the longest operation wavelength (e.g., 940 nm or 960 nm) and the shortest operation wavelength (e.g., 840 nm or 850 nm) pass through the edge of the aperture can be used as the reference for evaluating performance. The coordinate directions of the aforementioned tangential fan can be further divided into a positive direction (upper light) and a negative direction (lower light). The longest operation wavelength which passes through the edge of the aperture has an imaging position on the image plane specifically for the infrared light in a particular field of view, and the reference wavelength of the mail light (e.g., 940 nm or 960 nm) has another imaging position on the image plane specifically for the infrared light in the same field of view. The transverse aberration caused when the longest operation wavelength passes through the edge of the aperture is defined as a distance between these two imaging positions. Similarly, the shortest operation wavelength which passes through the edge of the aperture has an imaging position on the image plane specifically for the infrared light in a particular field of view, and the transverse aberration caused when the shortest operation wavelength passes through the edge of the aperture is defined as a distance between the imaging position of the shortest operation wavelength and the imaging position of the reference wavelength. The performance of the optical image capturing system can be considered excellent if the transverse aberrations of the shortest and the longest operation wavelength which pass through the edge of the aperture and image on the image plane specifically for the infrared light in 0.7 field of view (i.e., 0.7 times the height for image formation HOI) are both less than 20 μm or 20 pixels. Furthermore, for a stricter evaluation, the performance cannot be considered excellent unless the transverse aberrations of the shortest and the longest operation wavelength which pass through the edge of the aperture and image on the image plane specifically for the infrared light in 0.7 field of view are both less than 10 μm or 10 pixels. For infrared spectrum (700-1300 nm), the present invention may adopt the wavelength of 960 nm as the primary reference wavelength and the basis for the measurement of focus shift. The optical image capturing system includes an image plane specifically for the infrared light which is perpendicular to the optical axis, wherein the through-focus modulation transfer rate (value of MTF) at a first spatial frequency has a maximum value in the central of field of view of the image plane specifically for the infrared light, wherein the first spatial frequency is denoted by SP1, which satisfies the following condition: SP1≤440 cycles/mm. Preferably, the first spatial frequency satisfies the following condition: SP1≤220 cycles/mm.

The optical image capturing system has a maximum image height HOI on the image plane specifically for the infrared light vertical to the optical axis. A transverse aberration at 0.7 HOI in the positive direction of the tangential fan after the longest operation wavelength passing through the edge of the aperture is denoted by PLTA; a transverse aberration at 0.7 HOI in the positive direction of the tangential fan after the shortest operation wavelength passing through the edge of the aperture is denoted by PSTA; a transverse aberration at 0.7 HOI in the negative direction of the tangential fan after the longest operation wavelength passing through the edge of the aperture is denoted by NLTA; a transverse aberration at 0.7 HOI in the negative direction of the tangential fan after the shortest operation wavelength passing through the edge of the aperture is denoted by NSTA; a transverse aberration at 0.7 HOI of the sagittal fan after the longest operation wavelength passing through the edge of the aperture is denoted by SLTA; a transverse aberration at 0.7 HOI of the sagittal fan after the shortest operation wavelength passing through the edge of the aperture is denoted by SSTA.

The present invention provides an optical image capturing system, in which the fifth lens is provided with an inflection point at the object-side surface or at the image-side surface to adjust the incident angle of each view field and modify the ODT and the TDT. In addition, the surfaces of the fifth lens are capable of modifying the optical path to improve the imagining quality.

The optical image capturing system of the present invention includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and an image plane specifically for the infrared light in order along an optical axis from an object side to an image side. At least one lens among the first lens to the fifth lens has positive refractive power. Both the object-side surface and the image-side surface of the fifth lens are aspheric surfaces. The optical image capturing system satisfies: 0.5≤f/HEP≤1.8; 0 deg<HAF≤50 deg; and 0.9≤2(ARE/HEP)≤2.0;

where f is a focal length of the optical image capturing system; HEP is an entrance pupil diameter of the optical image capturing system; HOS is a distance between the object-side surface of the first lens and the image plane specifically for the infrared light on the optical axis; InTL is a distance between the object-side surface of the first lens and the image-side surface of the fifth lens on the optical axis; HAF is a half of a maximum view angle of the optical image capturing system; ARE is a profile curve length measured from a start point where the optical axis of the belonging optical image capturing system passes through the surface of the lens, along a surface profile of the lens, and finally to a coordinate point of a perpendicular distance where is a half of the entrance pupil diameter away from the optical axis.

The present invention further provides an optical image capturing system, including a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and an image plane specifically for the infrared light in order along an optical axis from an object side to an image side. At least one lens among the first lens to the fifth lens have at least an inflection point on at least a surface thereof. The optical image capturing system satisfies: 0.5≤f/HEP≤1.5; 0 deg<HAF≤50 deg; and 0.9≤2(ARE/HEP)≤2.0;

where f is a focal length of the optical image capturing system; HEP is an entrance pupil diameter of the optical image capturing system; HOS is a distance between the object-side surface of the first lens and the image plane specifically for the infrared light on the optical axis; InTL is a distance between the object-side surface of the first lens and the image-side surface of the fifth lens on the optical axis; HAF is a half of a maximum view angle of the optical image capturing system; ARE is a profile curve length measured from a start point where the optical axis of the belonging optical image capturing system passes through the surface of the lens, along a surface profile of the lens, and finally to a coordinate point of a perpendicular distance where is a half of the entrance pupil diameter away from the optical axis.

The present invention further provides an optical image capturing system, including a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and an image plane specifically for the infrared light, in order along an optical axis from an object side to an image side. The number of the lenses having refractive power in the optical image capturing system is five. At least two lenses among the first to the fifth lenses has at least an inflection point on at least one surface thereof. The optical image capturing system satisfies: 0.5≤f/HEP≤1.3; 10 deg≤HAF≤50 deg; and 0.9≤2(ARE/HEP)≤2.0;

where f is a focal length of the optical image capturing system; HEP is an entrance pupil diameter of the optical image capturing system; HOS is a distance between the object-side surface of the first lens and the image plane specifically for the infrared light on the optical axis; InTL is a distance between the object-side surface of the first lens and the image-side surface of the fifth lens on the optical axis; HAF is a half of a maximum view angle of the optical image capturing system; HOI is a maximum height for image formation perpendicular to the optical axis on the image plane specifically for the infrared light; ARE is a profile curve length measured from a start point where the optical axis of the belonging optical image capturing system passes through the surface of the lens, along a surface profile of the lens, and finally to a coordinate point of a perpendicular distance where is a half of the entrance pupil diameter away from the optical axis.

For any surface of any lens, the profile curve length within the effective half diameter affects the ability of the surface to correct aberration and differences between optical paths of light in different fields of view. With longer profile curve length, the ability to correct aberration is better. However, the difficulty of manufacturing increases as well. Therefore, the profile curve length within the effective half diameter of any surface of any lens has to be controlled. The ratio between the profile curve length (ARS) within the effective half diameter of one surface and the thickness (TP) of the lens, which the surface belonged to, on the optical axis (i.e., ARS/TP) has to be particularly controlled. For example, the profile curve length of the maximum effective half diameter of the object-side surface of the first lens is denoted by ARS11, the thickness of the first lens on the optical axis is TP1, and the ratio between these two parameters is ARS11/TP1; the profile curve length of the maximum effective half diameter of the image-side surface of the first lens is denoted by ARS12, and the ratio between ARS12 and TP1 is ARS12/TP1. The profile curve length of the maximum effective half diameter of the object-side surface of the second lens is denoted by ARS21, the thickness of the second lens on the optical axis is TP2, and the ratio between these two parameters is ARS21/TP2; the profile curve length of the maximum effective half diameter of the image-side surface of the second lens is denoted by ARS22, and the ratio between ARS22 and TP2 is ARS22/TP2. For any surface of other lenses in the optical image capturing system, the ratio between the profile curve length of the maximum effective half diameter thereof and the thickness of the lens which the surface belonged to is denoted in the same manner.

For any surface of any lens, the profile curve length within a half of the entrance pupil diameter (HEP) affects the ability of the surface to correct aberration and differences between optical paths of light in different fields of view. With longer profile curve length, the ability to correct aberration is better. However, the difficulty of manufacturing increases as well. Therefore, the profile curve length within a half of the entrance pupil diameter (HEP) of any surface of any lens has to be controlled. The ratio between the profile curve length (ARE) within a half of the entrance pupil diameter (HEP) of one surface and the thickness (TP) of the lens, which the surface belonged to, on the optical axis (i.e., ARE/TP) has to be particularly controlled. For example, the profile curve length of a half of the entrance pupil diameter (HEP) of the object-side surface of the first lens is denoted by ARE11, the thickness of the first lens on the optical axis is TP1, and the ratio between these two parameters is ARE11/TP1; the profile curve length of a half of the entrance pupil diameter (HEP) of the image-side surface of the first lens is denoted by ARE12, and the ratio between ARE12 and TP1 is ARE12/TP1. The profile curve length of a half of the entrance pupil diameter (HEP) of the object-side surface of the second lens is denoted by ARE21, the thickness of the second lens on the optical axis is TP2, and the ratio between these two parameters is ARE21/TP2; the profile curve length of a half of the entrance pupil diameter (HEP) of the image-side surface of the second lens is denoted by ARE22, and the ratio between ARE22 and TP2 is ARE22/TP2. For any surface of other lenses in the optical image capturing system, the ratio between the profile curve length of a half of the entrance pupil diameter (HEP) thereof and the thickness of the lens which the surface belonged to is denoted in the same manner.

In an embodiment, a height of the optical image capturing system (HOS) can be reduced while |f1|>f5.

In an embodiment, when |f2|+|f3|+|f4| and |f1|+|f5| of the lenses satisfy the aforementioned conditions, at least one lens among the second to the fourth lenses could have weak positive refractive power or weak negative refractive power. Herein the weak refractive power means the absolute value of the focal length of one specific lens is greater than 10. When at least one lens among the second to the fourth lenses has weak positive refractive power, it may share the positive refractive power of the first lens, and on the contrary, when at least one lens among the second to the fourth lenses has weak negative refractive power, it may fine turn and correct the aberration of the system.

In an embodiment, the fifth lens could have negative refractive power, and an image-side surface thereof is concave, it may reduce back focal length and size. Besides, the fifth lens can have at least an inflection point on at least a surface thereof, which may reduce an incident angle of the light of an off-axis field of view and correct the aberration of the off-axis field of view.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

The present invention will be best understood by referring to the following detailed description of some illustrative embodiments in conjunction with the accompanying drawings, in which

FIG. 1A is a schematic diagram of a first embodiment of the present invention;

FIG. 1B shows curve diagrams of longitudinal spherical aberration, astigmatic field, and optical distortion of the optical image capturing system in the order from left to right of the first embodiment of the present application;

FIG. 1C shows a tangential fan and a sagittal fan of the optical image capturing system of the first embodiment of the present application, and a transverse aberration diagram at 0.7 field of view when a longest operation wavelength and a shortest operation wavelength pass through an edge of an aperture;

FIG. 2A is a schematic diagram of a second embodiment of the present invention;

FIG. 2B shows curve diagrams of longitudinal spherical aberration, astigmatic field, and optical distortion of the optical image capturing system in the order from left to right of the second embodiment of the present application;

FIG. 2C shows a tangential fan and a sagittal fan of the optical image capturing system of the second embodiment of the present application, and a transverse aberration diagram at 0.7 field of view when a longest operation wavelength and a shortest operation wavelength pass through an edge of an aperture;

FIG. 3A is a schematic diagram of a third embodiment of the present invention;

FIG. 3B shows curve diagrams of longitudinal spherical aberration, astigmatic field, and optical distortion of the optical image capturing system in the order from left to right of the third embodiment of the present application;

FIG. 3C shows a tangential fan and a sagittal fan of the optical image capturing system of the third embodiment of the present application, and a transverse aberration diagram at 0.7 field of view when a longest operation wavelength and a shortest operation wavelength pass through an edge of an aperture;

FIG. 4A is a schematic diagram of a fourth embodiment of the present invention;

FIG. 4B shows curve diagrams of longitudinal spherical aberration, astigmatic field, and optical distortion of the optical image capturing system in the order from left to right of the fourth embodiment of the present application;

FIG. 4C shows a tangential fan and a sagittal fan of the optical image capturing system of the fourth embodiment of the present application, and a transverse aberration diagram at 0.7 field of view when a longest operation wavelength and a shortest operation wavelength pass through an edge of an aperture;

FIG. 5A is a schematic diagram of a fifth embodiment of the present invention;

FIG. 5B shows curve diagrams of longitudinal spherical aberration, astigmatic field, and optical distortion of the optical image capturing system in the order from left to right of the fifth embodiment of the present application;

FIG. 5C shows a tangential fan and a sagittal fan of the optical image capturing system of the fifth embodiment of the present application, and a transverse aberration diagram at 0.7 field of view when a longest operation wavelength and a shortest operation wavelength pass through an edge of an aperture;

FIG. 6A is a schematic diagram of a sixth embodiment of the present invention;

FIG. 6B shows curve diagrams of longitudinal spherical aberration, astigmatic field, and optical distortion of the optical image capturing system in the order from left to right of the sixth embodiment of the present application; and

FIG. 6C shows a tangential fan and a sagittal fan of the optical image capturing system of the sixth embodiment of the present application, and a transverse aberration diagram at 0.7 field of view when a longest operation wavelength and a shortest operation wavelength pass through an edge of an aperture.

DETAILED DESCRIPTION OF THE INVENTION

An optical image capturing system of the present invention includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and an image plane specifically for the infrared light from an object side to an image side. The optical image capturing system further is provided with an image sensor at the image plane specifically for the infrared light.

The optical image capturing system can work in three infrared light wavelengths, including 850 nm, 940 nm, and 960 nm, wherein 960 nm is the main reference wavelength and is the reference wavelength for obtaining the technical characters.

The optical image capturing system of the present invention satisfies 0.5≤ΣPPR/|ΣNPR|≤3.0, and a preferable range is 1≤ΣPPR/ΣNPR|≤2.5, where PPR is a ratio of the focal length fp of the optical image capturing system to a focal length fp of each of lenses with positive refractive power; NPR is a ratio of the focal length fn of the optical image capturing system to a focal length fn of each of lenses with negative refractive power; ΣPPR is a sum of the PPRs of each positive lens; and ΣNPR is a sum of the NPRs of each negative lens. It is helpful for control of an entire refractive power and an entire length of the optical image capturing system.

The image sensor is provided on the image plane specifically for the infrared light. The optical image capturing system of the present invention satisfies HOS/HOI≤25 and 0.5≤HOS/f≤25, and a preferable range is 1≤HOS/HOI≤20 and 1≤HOS/f≤20, where HOI is a half of a diagonal of an effective sensing area of the image sensor, i.e., the maximum image height, and HOS is a height of the optical image capturing system, i.e. a distance on the optical axis between the object-side surface of the first lens and the image plane specifically for the infrared light. It is helpful for reduction of the size of the system for used in compact cameras.

The optical image capturing system of the present invention further is provided with an aperture to increase image quality.

In the optical image capturing system of the present invention, the aperture could be a front aperture or a middle aperture, wherein the front aperture is provided between the object and the first lens, and the middle is provided between the first lens and the image plane specifically for the infrared light. The front aperture provides a long distance between an exit pupil of the system and the image plane specifically for the infrared light, which allows more elements to be installed. The middle could enlarge a view angle of view of the system and increase the efficiency of the image sensor. The optical image capturing system satisfies 0.2≤InS/HOS≤1.1, where InS is a distance between the aperture and the image plane specifically for the infrared light. It is helpful for size reduction and wide angle.

The optical image capturing system of the present invention satisfies 0.1≤ΣTP/InTL≤0.9, where InTL is a distance between the object-side surface of the first lens and the image-side surface of the fifth lens, and ΣTP is a sum of central thicknesses of the lenses on the optical axis. It is helpful for the contrast of image and yield rate of manufacture and provides a suitable back focal length for installation of other elements.

The optical image capturing system of the present invention satisfies 0.01≤|R1/R2|<100, and a preferable range is 0.05<|R1/R2|<80, where R1 is a radius of curvature of the object-side surface of the first lens, and R2 is a radius of curvature of the image-side surface of the first lens. It provides the first lens with a suitable positive refractive power to reduce the increase rate of the spherical aberration.

The optical image capturing system of the present invention satisfies −50<(R9−R10)/(R9+R10)<50, where R9 is a radius of curvature of the object-side surface of the fifth lens, and R10 is a radius of curvature of the image-side surface of the fifth lens. It may modify the astigmatic field curvature.

The optical image capturing system of the present invention satisfies IN12/f≤5.0, where IN12 is a distance on the optical axis between the first lens and the second lens. It may correct chromatic aberration and improve the performance.

The optical image capturing system of the present invention satisfies IN45/f≤5.0, where IN45 is a distance on the optical axis between the fourth lens and the fifth lens. It may correct chromatic aberration and improve the performance.

The optical image capturing system of the present invention satisfies 0.1≤(TP1+IN12)/TP2≤50.0, where TP1 is a central thickness of the first lens on the optical axis, and TP2 is a central thickness of the second lens on the optical axis. It may control the sensitivity of manufacture of the system and improve the performance.

The optical image capturing system of the present invention satisfies 0.1≤(TP5+IN45)/TP4≤50.0, where TP4 is a central thickness of the fourth lens on the optical axis, TP5 is a central thickness of the fifth lens on the optical axis, and IN45 is a distance between the fourth lens and the fifth lens. It may control the sensitivity of manufacture of the system and improve the performance.

The optical image capturing system of the present invention satisfies 0.1≤TP3/(IN23+TP3+IN34)<1, where TP2 is a central thickness of the second lens on the optical axis, TP3 is a central thickness of the third lens on the optical axis, TP4 is a central thickness of the fourth lens on the optical axis, IN23 is a distance on the optical axis between the second lens and the third lens, IN34 is a distance on the optical axis between the third lens and the fourth lens, and InTL is a distance between the object-side surface of the first lens and the image-side surface of the fifth lens. It may fine tune and correct the aberration of the incident rays layer by layer, and reduce the height of the system.

The optical image capturing system satisfies 0 mm≤HVT51≤3 mm; 0 mm<HVT52≤6 mm; 0≤HVT51/HVT52; 0 mm≤|SGC51|≤0.5 mm; 0 mm≤|SGC52|≤2 mm; and 0≤|SGC52|/(|SGC52|+TP5)≤0.9, where HVT51 a distance perpendicular to the optical axis between the critical point C51 on the object-side surface of the fifth lens and the optical axis; HVT52 a distance perpendicular to the optical axis between the critical point C52 on the image-side surface of the fifth lens and the optical axis; SGC51 is a distance on the optical axis between a point on the object-side surface of the fifth lens where the optical axis passes through and a point where the critical point C51 projects on the optical axis; SGC52 is a distance on the optical axis between a point on the image-side surface of the fifth lens where the optical axis passes through and a point where the critical point C52 projects on the optical axis. It is helpful to correct the off-axis view field aberration.

The optical image capturing system satisfies 0.2≤HVT52/HOI≤0.9, and preferably satisfies 0.3≤HVT52/HOI≤0.8. It may help to correct the peripheral aberration.

The optical image capturing system satisfies 0≤HVT52/HOS≤0.5, and preferably satisfies 0.2≤HVT52/HOS≤0.45. It may help to correct the peripheral aberration.

The optical image capturing system of the present invention satisfies 0<SGI511/(SGI511+TP5)≤0.9; 0<SGI521/(SGI521+TP5)≤0.9, and it is preferable to satisfy 0.1≤SGI511/(SGI511+TP5)≤0.6; 0.1≤SGI521/(SGI521+TP5)≤0.6, where SGI511 is a displacement on the optical axis from a point on the object-side surface of the fifth lens, through which the optical axis passes, to a point where the inflection point on the object-side surface, which is the closest to the optical axis, projects on the optical axis, and SGI521 is a displacement on the optical axis from a point on the image-side surface of the fifth lens, through which the optical axis passes, to a point where the inflection point on the image-side surface, which is the closest to the optical axis, projects on the optical axis.

The optical image capturing system of the present invention satisfies 0<SGI512/(SGI512+TP5)≤0.9; 0<SGI522/(SGI522+TP5)≤0.9, and it is preferable to satisfy 0.1≤SGI512/(SGI512+TP5)≤0.6; 0.1≤SGI522/(SGI522+TP5)≤0.6, where SGI512 is a displacement on the optical axis from a point on the object-side surface of the fifth lens, through which the optical axis passes, to a point where the inflection point on the object-side surface, which is the second closest to the optical axis, projects on the optical axis, and SGI522 is a displacement on the optical axis from a point on the image-side surface of the fifth lens, through which the optical axis passes, to a point where the inflection point on the image-side surface, which is the second closest to the optical axis, projects on the optical axis.

The optical image capturing system of the present invention satisfies 0.001 mm≤|HIF511|≤5 mm; 0.001 mm≤|HIF521|≤5 mm, and it is preferable to satisfy 0.1 mm≤|HIF511|≤3.5 mm; 1.5 mm≤|HIF521|≤3.5 mm, where HIF511 is a distance perpendicular to the optical axis between the inflection point on the object-side surface of the fifth lens, which is the closest to the optical axis, and the optical axis; HIF521 is a distance perpendicular to the optical axis between the inflection point on the image-side surface of the fifth lens, which is the closest to the optical axis, and the optical axis.

The optical image capturing system of the present invention satisfies 0.001 mm≤|HIF512|≤5 mm; 0.001 mm≤|HIF522|≤5 mm, and it is preferable to satisfy 0.1 mm≤|HIF522|≤3.5 mm; 0.1 mm≤|HIF512|≤3.5 mm, where HIF512 is a distance perpendicular to the optical axis between the inflection point on the object-side surface of the fifth lens, which is the second closest to the optical axis, and the optical axis; HIF522 is a distance perpendicular to the optical axis between the inflection point on the image-side surface of the fifth lens, which is the second closest to the optical axis, and the optical axis.

The optical image capturing system of the present invention satisfies 0.001 mm≤|HIF513|≤5 mm; 0.001 mm≤|HIF523|≤5 mm, and it is preferable to satisfy 0.1 mm≤|HIF523|≤3.5 mm; 0.1 mm≤|HIF513|≤3.5 mm, where HIF513 is a distance perpendicular to the optical axis between the inflection point on the object-side surface of the fifth lens, which is the third closest to the optical axis, and the optical axis; HIF523 is a distance perpendicular to the optical axis between the inflection point on the image-side surface of the fifth lens, which is the third closest to the optical axis, and the optical axis.

The optical image capturing system of the present invention satisfies 0.001 mm≤|HIF514|≤5 mm; 0.001 mm≤|HIF524|≤5 mm, and it is preferable to satisfy 0.1 mm≤|HIF524|≤3.5 mm; 0.1 mm≤|HIF514|≤3.5 mm, where HIF514 is a distance perpendicular to the optical axis between the inflection point on the object-side surface of the fifth lens, which is the fourth closest to the optical axis, and the optical axis; HIF524 is a distance perpendicular to the optical axis between the inflection point on the image-side surface of the fifth lens, which is the fourth closest to the optical axis, and the optical axis.

In an embodiment, the lenses of high Abbe number and the lenses of low Abbe number are arranged in an interlaced arrangement that could be helpful for correction of aberration of the system.

An equation of aspheric surface is z=ch ²/[1+[1−(k+1)c ² h ²]^(0.5)]+A4h ⁴ +A6h ⁶ +A8h ⁸ +A10h ¹⁰ +A12h ¹² +A14h ¹⁴ +A16h ¹⁶ +A18h ¹⁸ +A20h ²⁰+ . . .  (1)

where z is a depression of the aspheric surface; k is conic constant; c is reciprocal of the radius of curvature; and A4, A6, A8, A10, A12, A14, A16, A18, and A20 are high-order aspheric coefficients.

In the optical image capturing system, the lenses could be made of plastic or glass. The plastic lenses may reduce the weight and lower the cost of the system, and the glass lenses may control the thermal effect and enlarge the space for arrangement of the refractive power of the system. In addition, the opposite surfaces (object-side surface and image-side surface) of the first to the fifth lenses could be aspheric that can obtain more control parameters to reduce aberration. The number of aspheric glass lenses could be less than the conventional spherical glass lenses, which is helpful for reduction of the height of the system.

When the lens has a convex surface, which means that the surface is convex around a position, through which the optical axis passes, and when the lens has a concave surface, which means that the surface is concave around a position, through which the optical axis passes.

The optical image capturing system of the present invention could be applied in a dynamic focusing optical system. It is superior in the correction of aberration and high imaging quality so that it could be allied in lots of fields.

The optical image capturing system of the present invention could further include a driving module to meet different demands, wherein the driving module can be coupled with the lenses to move the lenses. The driving module can be a voice coil motor (VCM), which is used to move the lens for focusing, or can be an optical image stabilization (OIS) component, which is used to lower the possibility of having the problem of image blurring which is caused by subtle movements of the lens while shooting.

To meet different requirements, at least one lens among the first lens to the fifth lens of the optical image capturing system of the present invention can be a light filter, which filters out light of wavelength shorter than 500 nm. Such effect can be achieved by coating on at least one surface of the lens, or by using materials capable of filtering out short waves to make the lens.

To meet different requirements, the image plane specifically for the infrared light of the optical image capturing system in the present invention can be either flat or curved. If the image plane specifically for the infrared light is curved (e.g., a sphere with a radius of curvature), the incidence angle required for focusing light on the image plane specifically for the infrared light can be decreased, which is not only helpful to shorten the length of the system (TTL), but also helpful to increase the relative illuminance.

The optical image capturing system of the present invention could be applied to three-dimensional image capture. A light with specific characteristics is projected onto an object, and is reflected by a surface of the object, and is then received and calculated and analyzed by the lens to obtain the distance between each position of the object and the lens, thereby to determine the information of the three-dimensional image. The light projection usually uses infrared rays in a specific wavelength to reduce interference, thereby to achieving more accurate measurement. The detecting way for capturing the three-dimensional image could be, but not limited to, technologies such as time-of-flight (TOF) or structured light.

We provide several embodiments in conjunction with the accompanying drawings for the best understanding, which are:

First Embodiment

As shown in FIG. 1A and FIG. 1B, an optical image capturing system 10 of the first embodiment of the present invention includes, along an optical axis from an object side to an image side, a first lens 110, an aperture 100, a second lens 120, a third lens 130, a fourth lens 140, a fifth lens 150, an infrared rays filter 170, an image plane specifically for the infrared light 180, and an image sensor 190. FIG. 1C shows a tangential fan and a sagittal fan of the optical image capturing system 10 of the first embodiment of the present application, and a transverse aberration diagram at 0.7 field of view when a longest operation wavelength and a shortest operation wavelength pass through an edge of the aperture 100.

The first lens 110 has negative refractive power and is made of plastic. An object-side surface 112 thereof, which faces the object side, is a convex aspheric surface, and an image-side surface 114 thereof, which faces the image side, is a concave aspheric surface. The object-side surface 112 has an inflection point thereon. A profile curve length of the maximum effective half diameter of an object-side surface of the first lens 110 is denoted by ARS11, and a profile curve length of the maximum effective half diameter of the image-side surface of the first lens 110 is denoted by ARS12. A profile curve length of a half of an entrance pupil diameter (HEP) of the object-side surface of the first lens 110 is denoted by ARE11, and a profile curve length of a half of the entrance pupil diameter (HEP) of the image-side surface of the first lens 110 is denoted by ARE12. A thickness of the first lens 110 on the optical axis is TP1.

The first lens satisfies SGI111=1.96546 mm; ISGI111|/(ISGI111|+TP1)=0.72369, where SGI111 is a displacement on the optical axis from a point on the object-side surface of the first lens, through which the optical axis passes, to a point where the inflection point on the object-side surface, which is the closest to the optical axis, projects on the optical axis, and SGI121 is a displacement on the optical axis from a point on the image-side surface of the first lens, through which the optical axis passes, to a point where the inflection point on the image-side surface, which is the closest to the optical axis, projects on the optical axis.

The first lens satisfies HIF111=3.38542 mm; HIF111/HOI=0.90519, where HIF111 is a displacement perpendicular to the optical axis from a point on the object-side surface of the first lens, through which the optical axis passes, to the inflection point, which is the closest to the optical axis; HIF121 is a displacement perpendicular to the optical axis from a point on the image-side surface of the first lens, through which the optical axis passes, to the inflection point, which is the closest to the optical axis.

The second lens 120 has positive refractive power and is made of plastic. An object-side surface 122 thereof, which faces the object side, is a convex aspheric surface, and an image-side surface 124 thereof, which faces the image side, is a concave aspheric surface. A profile curve length of the maximum effective half diameter of an object-side surface of the second lens 120 is denoted by ARS21, and a profile curve length of the maximum effective half diameter of the image-side surface of the second lens 120 is denoted by ARS22. A profile curve length of a half of an entrance pupil diameter (HEP) of the object-side surface of the second lens 120 is denoted by ARE21, and a profile curve length of a half of the entrance pupil diameter (HEP) of the image-side surface of the second lens 120 is denoted by ARE22. A thickness of the second lens 120 on the optical axis is TP2.

For the second lens, a displacement on the optical axis from a point on the object-side surface of the second lens, through which the optical axis passes, to a point where the inflection point on the image-side surface, which is the closest to the optical axis, projects on the optical axis, is denoted by SGI211, and a displacement on the optical axis from a point on the image-side surface of the second lens, through which the optical axis passes, to a point where the inflection point on the image-side surface, which is the closest to the optical axis, projects on the optical axis is denoted by SGI221.

For the second lens, a displacement perpendicular to the optical axis from a point on the object-side surface of the second lens, through which the optical axis passes, to the inflection point, which is the closest to the optical axis is denoted by HIF211, and a displacement perpendicular to the optical axis from a point on the image-side surface of the second lens, through which the optical axis passes, to the inflection point, which is the closest to the optical axis is denoted by HIF221.

The third lens 130 has positive refractive power and is made of plastic. An object-side surface 132, which faces the object side, is a convex aspheric surface, and an image-side surface 134, which faces the image side, is a convex aspheric surface. The object-side surface 132 has an inflection point. A profile curve length of the maximum effective half diameter of an object-side surface of the third lens 130 is denoted by ARS31, and a profile curve length of the maximum effective half diameter of the image-side surface of the third lens 130 is denoted by ARS32. A profile curve length of a half of an entrance pupil diameter (HEP) of the object-side surface of the third lens 130 is denoted by ARE31, and a profile curve length of a half of the entrance pupil diameter (HEP) of the image-side surface of the third lens 130 is denoted by ARE32. A thickness of the third lens 130 on the optical axis is TP3.

The third lens 130 satisfies SGI311=0.00388 mm; |SGI311|/(|SGI311|+TP3)=0.00414, where SGI311 is a displacement on the optical axis from a point on the object-side surface of the third lens, through which the optical axis passes, to a point where the inflection point on the object-side surface, which is the closest to the optical axis, projects on the optical axis, and SGI321 is a displacement on the optical axis from a point on the image-side surface of the third lens, through which the optical axis passes, to a point where the inflection point on the image-side surface, which is the closest to the optical axis, projects on the optical axis.

For the third lens 130, SGI312 is a displacement on the optical axis from a point on the object-side surface of the third lens, through which the optical axis passes, to a point where the inflection point on the object-side surface, which is the second closest to the optical axis, projects on the optical axis, and SGI322 is a displacement on the optical axis from a point on the image-side surface of the third lens, through which the optical axis passes, to a point where the inflection point on the object-side surface, which is the second closest to the optical axis, projects on the optical axis.

The third lens 130 further satisfies HIF311=0.38898 mm; HIF311/HOI=0.10400, where HIF311 is a distance perpendicular to the optical axis between the inflection point on the object-side surface of the third lens, which is the closest to the optical axis, and the optical axis; HIF321 is a distance perpendicular to the optical axis between the inflection point on the image-side surface of the third lens, which is the closest to the optical axis, and the optical axis.

For the third lens 130, HIF312 is a distance perpendicular to the optical axis between the inflection point on the object-side surface of the third lens, which is the second closest to the optical axis, and the optical axis; HIF322 is a distance perpendicular to the optical axis between the inflection point on the image-side surface of the third lens, which is the second closest to the optical axis, and the optical axis.

The fourth lens 140 has positive refractive power and is made of plastic. An object-side surface 142, which faces the object side, is a convex aspheric surface, and an image-side surface 144, which faces the image side, is a convex aspheric surface. The object-side surface 142 has an inflection point. A profile curve length of the maximum effective half diameter of an object-side surface of the fourth lens 140 is denoted by ARS41, and a profile curve length of the maximum effective half diameter of the image-side surface of the fourth lens 140 is denoted by ARS42. A profile curve length of a half of an entrance pupil diameter (HEP) of the object-side surface of the fourth lens 140 is denoted by ARE41, and a profile curve length of a half of the entrance pupil diameter (HEP) of the image-side surface of the fourth lens 140 is denoted by ARE42. A thickness of the fourth lens 140 on the optical axis is TP4.

The fourth lens 140 satisfies SGI421=0.06508 mm; |SGI421|/(|SGI421|+TP4)=0.03459, where SGI411 is a displacement on the optical axis from a point on the object-side surface of the fourth lens, through which the optical axis passes, to a point where the inflection point on the object-side surface, which is the closest to the optical axis, projects on the optical axis, and SGI421 is a displacement on the optical axis from a point on the image-side surface of the fourth lens, through which the optical axis passes, to a point where the inflection point on the image-side surface, which is the closest to the optical axis, projects on the optical axis.

For the fourth lens 140, SGI412 is a displacement on the optical axis from a point on the object-side surface of the fourth lens, through which the optical axis passes, to a point where the inflection point on the object-side surface, which is the second closest to the optical axis, projects on the optical axis, and SGI422 is a displacement on the optical axis from a point on the image-side surface of the fourth lens, through which the optical axis passes, to a point where the inflection point on the object-side surface, which is the second closest to the optical axis, projects on the optical axis.

The fourth lens 140 further satisfies HIF421=0.85606 mm; HIF421/HOI=0.22889, where HIF411 is a distance perpendicular to the optical axis between the inflection point on the object-side surface of the fourth lens, which is the closest to the optical axis, and the optical axis; HIF421 is a distance perpendicular to the optical axis between the inflection point on the image-side surface of the fourth lens, which is the closest to the optical axis, and the optical axis.

For the fourth lens 140, HIF412 is a distance perpendicular to the optical axis between the inflection point on the object-side surface of the fourth lens, which is the second closest to the optical axis, and the optical axis; HIF422 is a distance perpendicular to the optical axis between the inflection point on the image-side surface of the fourth lens, which is the second closest to the optical axis, and the optical axis.

The fifth lens 150 has negative refractive power and is made of plastic. An object-side surface 152, which faces the object side, is a concave aspheric surface, and an image-side surface 154, which faces the image side, is a concave aspheric surface. The object-side surface 152 and the image-side surface 154 both have an inflection point. A profile curve length of the maximum effective half diameter of an object-side surface of the fifth lens 150 is denoted by ARS51, and a profile curve length of the maximum effective half diameter of the image-side surface of the fifth lens 150 is denoted by ARS52. A profile curve length of a half of an entrance pupil diameter (HEP) of the object-side surface of the fifth lens 150 is denoted by ARE51, and a profile curve length of a half of the entrance pupil diameter (HEP) of the image-side surface of the fifth lens 150 is denoted by ARE52. A thickness of the fifth lens 150 on the optical axis is TP5.

The fifth lens 150 satisfies SGI511=−1.51505 mm; |SGI511|/(|SGI511|+TP5)=0.70144; SGI521=0.01229 mm; |SGI521|/(|SGI521|+TP5)=0.01870, where SGI511 is a displacement on the optical axis from a point on the object-side surface of the fifth lens, through which the optical axis passes, to a point where the inflection point on the object-side surface, which is the closest to the optical axis, projects on the optical axis, and SGI521 is a displacement on the optical axis from a point on the image-side surface of the fifth lens, through which the optical axis passes, to a point where the inflection point on the image-side surface, which is the closest to the optical axis, projects on the optical axis.

For the fifth lens 150, SGI512 is a displacement on the optical axis from a point on the object-side surface of the fifth lens, through which the optical axis passes, to a point where the inflection point on the object-side surface, which is the second closest to the optical axis, projects on the optical axis, and SGI522 is a displacement on the optical axis from a point on the image-side surface of the fifth lens, through which the optical axis passes, to a point where the inflection point on the object-side surface, which is the second closest to the optical axis, projects on the optical axis.

The fifth lens 150 further satisfies HIF511=2.25435 mm; HIF511/HOI=0.60277; HIF521=0.82313 mm; HIF521/HOI=0.22009, where HIF511 is a distance perpendicular to the optical axis between the inflection point on the object-side surface of the fifth lens, which is the closest to the optical axis, and the optical axis; HIF521 is a distance perpendicular to the optical axis between the inflection point on the image-side surface of the fifth lens, which is the closest to the optical axis, and the optical axis.

For the fifth lens 150, HIF512 is a distance perpendicular to the optical axis between the inflection point on the object-side surface of the fifth lens, which is the second closest to the optical axis, and the optical axis; HIF522 is a distance perpendicular to the optical axis between the inflection point on the image-side surface of the fifth lens, which is the second closest to the optical axis, and the optical axis.

The infrared rays filter 170 is made of glass and between the fifth lens 150 and the image plane specifically for the infrared light 180. The infrared rays filter 170 gives no contribution to the focal length of the system.

The optical image capturing system 10 of the first embodiment has the following parameters, which are f=3.03968 mm; f/HEP=1.6; HAF=50.001; and tan(HAF)=1.1918, where f is a focal length of the system; HAF is a half of the maximum field angle; and HEP is an entrance pupil diameter.

The parameters of the lenses of the first embodiment are f1=−9.24529 mm; |f/f1|=0.32878; f5=−2.32439; and |f1|>f5, where f1 is a focal length of the first lens 110; and f5 is a focal length of the fifth lens 150.

The first embodiment further satisfies |f2|+|f3|+|f4|=17.3009 mm; |f1|+|f5|=11.5697 mm and |f2|+|f3|+|f4|>|f1|+|f5|, where f2 is a focal length of the second lens 120, f3 is a focal length of the third lens 130, f4 is a focal length of the fourth lens 140, and f5 is a focal length of the fifth lens 150.

The optical image capturing system 10 of the first embodiment further satisfies ΣPPR=f/f2+f/f3+f/f4=1.86768; ΣNPR=f/f1+f/f5=−1.63651; ΣPPR/|ΣNPR|=1.14125; |f/f2|=0.47958; |f/f3|=0.38289; |f/f4|=1.00521; |f/f5|=1.30773, where PPR is a ratio of a focal length fp of the optical image capturing system to a focal length fp of each of the lenses with positive refractive power; and NPR is a ratio of a focal length fn of the optical image capturing system to a focal length fn of each of lenses with negative refractive power.

The optical image capturing system 10 of the first embodiment further satisfies InTL+BFL=HOS; HOS=10.56320 mm; HOI=3.7400 mm; HOS/HOI=2.8244; HOS/f=3.4751; InS=6.21073 mm; and InS/HOS=0.5880, where InTL is a distance between the object-side surface 112 of the first lens 110 and the image-side surface 154 of the fifth lens 150; HOS is a height of the image capturing system, i.e. a distance between the object-side surface 112 of the first lens 110 and the image plane specifically for the infrared light 180; InS is a distance between the aperture 100 and the image plane specifically for the infrared light 180; HOI is a half of a diagonal of an effective sensing area of the image sensor 190, i.e., the maximum image height; and BFL is a distance between the image-side surface 154 of the fifth lens 150 and the image plane specifically for the infrared light 180.

The optical image capturing system 10 of the first embodiment further satisfies ΣTP=5.0393 mm; InTL=9.8514 mm and ΣTP/InTL=0.5115, where ΣTP is a sum of the thicknesses of the lenses 110-150 with refractive power. It is helpful for the contrast of image and yield rate of manufacture and provides a suitable back focal length for installation of other elements.

The optical image capturing system 10 of the first embodiment further satisfies |R1/R2|=1.9672, where R1 is a radius of curvature of the object-side surface 112 of the first lens 110, and R2 is a radius of curvature of the image-side surface 114 of the first lens 110. It provides the first lens with a suitable positive refractive power to reduce the increase rate of the spherical aberration.

The optical image capturing system 10 of the first embodiment further satisfies (R9−R10)/(R9+R10)=−1.1505, where R9 is a radius of curvature of the object-side surface 152 of the fifth lens 150, and R10 is a radius of curvature of the image-side surface 154 of the fifth lens 150. It may modify the astigmatic field curvature.

The optical image capturing system 10 of the first embodiment further satisfies ΣPP=f2+f3+f4=17.30090 mm; and f2/(f2+f3+f4)=0.36635, where ΣPP is a sum of the focal length fp of each lens with positive refractive power. It is helpful to share the positive refractive power of the second lens 120 to other positive lenses to avoid the significant aberration caused by the incident rays.

The optical image capturing system 10 of the first embodiment further satisfies ΣNP=f1+f5=−11.56968 mm; and f5/(f1+f5)=0.20090, where ΣNP is a sum of the focal length fn of each lens with negative refractive power. It is helpful to share the negative refractive power of the fifth lens 150 to the other negative lens, which avoids the significant aberration caused by the incident rays.

The optical image capturing system 10 of the first embodiment further satisfies IN12=3.19016 mm; IN12/f=1.04951, where IN12 is a distance on the optical axis between the first lens 110 and the second lens 120. It may correct chromatic aberration and improve the performance.

The optical image capturing system 10 of the first embodiment further satisfies IN45=0.40470 mm; IN45/f=0.13314, where IN45 is a distance on the optical axis between the fourth lens 140 and the fifth lens 150. It may correct chromatic aberration and improve the performance.

The optical image capturing system 10 of the first embodiment further satisfies TP1=0.75043 mm; TP2=0.89543 mm; TP3=0.93225 mm; and (TP1+IN12)/TP2=4.40078, where TP1 is a central thickness of the first lens 110 on the optical axis, TP2 is a central thickness of the second lens 120 on the optical axis, and TP3 is a central thickness of the third lens 130 on the optical axis. It may control the sensitivity of manufacture of the system and improve the performance.

The optical image capturing system 10 of the first embodiment further satisfies TP4=1.81634 mm; TP5=0.64488 mm; and (TP5+IN45)/TP4=0.57785, where TP4 is a central thickness of the fourth lens 140 on the optical axis, TP5 is a central thickness of the fifth lens 150 on the optical axis, and IN45 is a distance on the optical axis between the fourth lens 140 and the fifth lens 150. It may control the sensitivity of manufacture of the system and lower the total height of the system.

The optical image capturing system 10 of the first embodiment further satisfies TP2/TP3=0.96051; TP3/TP4=0.51325; TP4/TP5=2.81657; and TP3/(IN23+TP3+IN34)=0.43372, where IN34 is a distance on the optical axis between the third lens 130 and the fourth lens 140. It may control the sensitivity of manufacture of the system and lower the total height of the system.

The optical image capturing system 10 of the first embodiment further satisfies InRS41=−0.09737 mm; InRS42=−1.31040 mm; |InRS41|/TP4=0.05361 and |InRS42|/TP4=0.72145, where InRS41 is a displacement from a point on the object-side surface 142 of the fourth lens 140 passed through by the optical axis to a point on the optical axis where a projection of the maximum effective semi diameter of the object-side surface 142 of the fourth lens 140 ends; InRS42 is a displacement from a point on the image-side surface 144 of the fourth lens 140 passed through by the optical axis to a point on the optical axis where a projection of the maximum effective semi diameter of the image-side surface 144 of the fourth lens 140 ends; and TP4 is a central thickness of the fourth lens 140 on the optical axis. It is helpful for manufacturing and shaping of the lenses and is helpful to reduce the size.

The optical image capturing system 10 of the first embodiment further satisfies HVT41=1.41740 mm; HVT42=0, where HVT41 is a distance perpendicular to the optical axis between the critical point on the object-side surface 142 of the fourth lens and the optical axis; and HVT42 is a distance perpendicular to the optical axis between the critical point on the image-side surface 144 of the fourth lens and the optical axis.

The optical image capturing system 10 of the first embodiment further satisfies InRS51=−1.63543 mm; InRS52=−0.34495 mm; |InRS51|/TP5=2.53604 and |InRS52|/TP5=0.53491, where InRS51 is a displacement from a point on the object-side surface 152 of the fifth lens 150 passed through by the optical axis to a point on the optical axis where a projection of the maximum effective semi diameter of the object-side surface 152 of the fifth lens 150 ends; InRS52 is a displacement from a point on the image-side surface 154 of the fifth lens 150 passed through by the optical axis to a point on the optical axis where a projection of the maximum effective semi diameter of the image-side surface 154 of the fifth lens 150 ends; and TP5 is a central thickness of the fifth lens 150 on the optical axis. It is helpful for manufacturing and shaping of the lenses and is helpful to reduce the size.

The optical image capturing system 10 of the first embodiment satisfies HVT51=0; HVT52=1.35891 mm; and HVT51/HVT52=0, where HVT51 a distance perpendicular to the optical axis between the critical point on the object-side surface 152 of the fifth lens and the optical axis; and HVT52 a distance perpendicular to the optical axis between the critical point on the image-side surface 154 of the fifth lens and the optical axis.

The optical image capturing system 10 of the first embodiment satisfies HVT52/HOI=0.36334. It is helpful for correction of the aberration of the peripheral view field of the optical image capturing system.

The optical image capturing system 10 of the first embodiment satisfies HVT52/HOS=0.12865. It is helpful for correction of the aberration of the peripheral view field of the optical image capturing system.

The third lens 130 and the fifth lens 150 have negative refractive power. The optical image capturing system 10 of the first embodiment further satisfies NA5/NA3=0.368966, where NA3 is an Abbe number of the third lens 130; and NA5 is an Abbe number of the fifth lens 150. It may correct the aberration of the optical image capturing system.

The optical image capturing system 10 of the first embodiment further satisfies |TDT|=0.63350%; |ODT|=2.06135%, where TDT is TV distortion; and ODT is optical distortion.

For the fifth lens 150 of the optical image capturing system 10 in the first embodiment, a transverse aberration at 0.7 field of view in the positive direction of the tangential fan after the longest operation wavelength passing through the edge of the aperture 100 is denoted by PLTA, and is −0.042 mm; a transverse aberration at 0.7 field of view in the positive direction of the tangential fan after the shortest operation wavelength passing through the edge of the aperture 100 is denoted by PSTA, and is 0.056 mm; a transverse aberration at 0.7 field of view in the negative direction of the tangential fan after the longest operation wavelength passing through the edge of the aperture 100 is denoted by NLTA, and is −0.011 mm; a transverse aberration at 0.7 field of view in the negative direction of the tangential fan after the shortest operation wavelength passing through the edge of the aperture 100 is denoted by NSTA, and is −0.024 mm; a transverse aberration at 0.7 field of view of the sagittal fan after the longest operation wavelength passing through the edge of the aperture 100 is denoted by SLTA, and is −0.013 mm; a transverse aberration at 0.7 field of view of the sagittal fan after the shortest operation wavelength passing through the edge of the aperture 100 is denoted by SSTA, and is 0.018 mm.

The parameters of the lenses of the first embodiment are listed in Table 1 and Table 2.

TABLE 1 f = 3.03968 mm; f/HEP = 1.6; HAF = 50.0010 deg Focal Radius of Thickness Refractive Abbe length Surface curvature (mm) (mm) Material index number (mm) 0 Object plane infinity 1 1^(st) lens 4.01438621 0.750 plastic 1.514 56.80 −9.24529 2 2.040696375 3.602 3 Aperture plane −0.412 4 2^(nd) lens 2.45222384 0.895 plastic 1.565 58.00 6.33819 5 6.705898264 0.561 6 3^(rd) lens 16.39663088 0.932 plastic 1.565 58.00 7.93877 7 −6.073735083 0.656 8 4^(th) lens 4.421363446 1.816 plastic 1.565 58.00 3.02394 9 −2.382933539 0.405 10 5^(th) lens −1.646639396 0.645 plastic 1.650 21.40 −2.32439 11 23.53222697 0.100 12 Infrared rays 1E+18 0.200 BK7_SCH 1.517 64.20 filter 13 1E+18 0.412 14 Image plane 1E+18 0 specifically for infrared light Reference wavelength: 555 nm.

TABLE 2 Coefficients of the aspheric surfaces Surface 1 2 4 5 6 7 8 k −1.882119E−01  −1.927558E+00  −6.483417E+00  1.766123E+01 −5.000000E+01 −3.544648E+01  −3.167522E+01 A4 7.686381E−04 3.070422E−02 5.439775E−02 7.241691E−03 −2.985209E−02 −6.315366E−02  −1.903506E−03 A6 4.630306E−04 −3.565153E−03  −7.980567E−03  −8.359563E−03  −7.175713E−03 6.038040E−03 −1.806837E−03 A8 3.178966E−05 2.062259E−03 −3.537039E−04  1.303430E−02  4.284107E−03 4.674156E−03 −1.670351E−03 A10 −1.773597E−05  −1.571117E−04  2.844845E−03 −6.951350E−03  −5.492349E−03 −8.031117E−03   4.791024E−04 A12 1.620619E−06 −4.694004E−05  −1.025049E−03  1.366262E−03  1.232072E−03 3.319791E−03 −5.594125E−05 A14 −4.916041E−08  7.399980E−06 1.913679E−04 3.588298E−04 −4.107269E−04 −5.356799E−04   3.704401E−07 A16 0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00  0.000000E+00 0.000000E+00  0.000000E+00 A18 0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00  0.000000E+00 0.000000E+00  0.000000E+00 A20 0.000000E+00 0.000000E+00 0.000000E+00 0.000000E+00  0.000000E+00 0.000000E+00  0.000000E+00 Surface 9 10 11 k −2.470764E+00  −1.570351E+00 4.928899E+01 A4 −2.346908E−04  −4.250059E−04 −4.625703E−03  A6 2.481207E−03 −1.591781E−04 −7.108872E−04  A8 −5.862277E−04  −3.752177E−05 3.429244E−05 A10 −1.955029E−04  −9.210114E−05 2.887298E−06 A12 1.880941E−05 −1.101797E−05 3.684628E−07 A14 1.132586E−06  3.536320E−06 −4.741322E−08  A16 0.000000E+00  0.000000E+00 0.000000E+00 A18 0.000000E+00  0.000000E+00 0.000000E+00 A20 0.000000E+00  0.000000E+00 0.000000E+00

The figures related to the profile curve lengths obtained based on Table 1 and Table 2 are listed in the following table:

First embodiment (Reference wavelength: 555 nm) ARE ARE 1/2(HEP) value ARE-1/2(HEP) 2(ARE/HEP) % TP ARE/TP (%) 11 0.950 0.958 0.008 100.87% 0.750 127.69% 12 0.950 0.987 0.037 103.91% 0.750 131.53% 21 0.950 0.976 0.026 102.74% 0.895 108.99% 22 0.950 0.954 0.004 100.42% 0.895 106.52% 31 0.950 0.949 −0.001 99.94% 0.932 101.83% 32 0.950 0.959 0.009 100.93% 0.932 102.84% 41 0.950 0.953 0.003 100.29% 1.816 52.45% 42 0.950 0.970 0.020 102.15% 1.816 53.42% 51 0.950 0.995 0.045 104.71% 0.645 154.24% 52 0.950 0.949 −0.001 99.92% 0.645 147.18% ARS ARS EHD value ARS-EHD (ARS/EHD)% TP ARS/TP (%) 11 3.459 4.210 0.751 121.71% 0.750 561.03% 12 2.319 3.483 1.165 150.24% 0.750 464.19% 21 1.301 1.384 0.084 106.43% 0.895 154.61% 22 1.293 1.317 0.024 101.87% 0.895 147.09% 31 1.400 1.447 0.047 103.39% 0.932 155.22% 32 1.677 1.962 0.285 116.97% 0.932 210.45% 41 2.040 2.097 0.057 102.82% 1.816 115.48% 42 2.338 2.821 0.483 120.67% 1.816 155.32% 51 2.331 2.971 0.639 127.43% 0.645 460.64% 52 3.219 3.267 0.049 101.51% 0.645 506.66%

The detail parameters of the first embodiment are listed in Table 1, in which the unit of the radius of curvature, thickness, and focal length are millimeter, and surface 0-10 indicates the surfaces of all elements in the system in sequence from the object side to the image side. Table 2 is the list of coefficients of the aspheric surfaces, in which A1-A20 indicate the coefficients of aspheric surfaces from the first order to the twentieth order of each aspheric surface. The following embodiments have the similar diagrams and tables, which are the same as those of the first embodiment, so we do not describe it again.

Second Embodiment

As shown in FIG. 2A and FIG. 2B, an optical image capturing system 20 of the second embodiment of the present invention includes, along an optical axis from an object side to an image side, an aperture 200, a first lens 210, a second lens 220, a third lens 230, a fourth lens 240, a fifth lens 250, an infrared rays filter 270, an image plane specifically for the infrared light 280, and an image sensor 290. FIG. 2C is a transverse aberration diagram at 0.7 field of view of the second embodiment of the present application.

The first lens 210 has positive refractive power and is made of plastic. An object-side surface 212 thereof, which faces the object side, is a convex surface, and an image-side surface 214 thereof, which faces the image side, is a concave surface; both of the object-side surface 212 and the image-side surface 214 are aspheric surfaces. The object-side surface 212 has an inflection point, and the image-side surface 214 has an inflection point.

The second lens 220 has positive refractive power and is made of plastic. An object-side surface 222 thereof, which faces the object side, is a concave surface, and an image-side surface 224 thereof, which faces the image side, is a convex surface; both of the object-side surface 222 and the image-side surface 224 are aspheric surfaces. The object-side surface 222 has two inflection points, and the image-side surface 224 has two inflection points.

The third lens 230 has positive refractive power and is made of plastic. An object-side surface 232, which faces the object side, is a convex aspheric surface, and an image-side surface 234, which faces the image side, is a concave aspheric surface. The object-side surface 232 has an inflection point, and the image-side surface 234 has two inflection points.

The fourth lens 240 has positive refractive power and is made of plastic. An object-side surface 242, which faces the object side, is a concave surface, and an image-side surface 244, which faces the image side, is a convex surface; both of the object-side surface 242 and the image-side surface 244 are aspheric surfaces. The object-side surface 242 has two inflection points, and the image-side surface 244 has three inflection points.

The fifth lens 250 has negative refractive power and is made of plastic. An object-side surface 252, which faces the object side, is a convex surface, and an image-side surface 254, which faces the image side, is a concave surface; both of the object-side surface 252 and the image-side surface 254 are convex surfaces. The object-side surface 252 has two inflection points, and the image-side surface 254 has two inflection points. It may help to shorten the back focal length to keep small in size. In addition, it may reduce an incident angle of the light of an off-axis field of view and correct the aberration of the off-axis field of view.

The infrared rays filter 270 is made of glass and between the fifth lens 250 and the image plane specifically for the infrared light 280. The infrared rays filter 270 gives no contribution to the focal length of the system.

The parameters of the lenses of the second embodiment are listed in Table 3 and Table 4.

TABLE 3 f = 2.9745 mm; f/HEP = 0.9; HAF = 35.0 deg Focal Radius of Thickness Refractive Abbe length Surface curvature (mm) (mm) Material index number (mm) 0 Object 1E+18 1E+18 1 Aperture 1E+18 0.536 2 1^(st) lens 2.783916016 0.778 plastic 1.661 20.390 5.72931 3 9.699706974 0.318 4 2^(nd) lens −2.87366872 0.574 plastic 1.661 20.390 19.7653 5 −2.535299643 0.025 6 3^(rd) lens 1.086748693 0.293 plastic 1.661 20.390 16.204 7 1.082454613 0.630 8 4^(th) lens −5.067356718 0.666 plastic 1.661 20.390 2.95718 9 −1.469970162 0.177 10 5^(th) lens 5.236111736 0.415 plastic 1.661 20.390 −3.31323 11 1.482316918 0.413 12 Infrared rays 1E+18 0.125 NBK7 filter 13 1E+18 0.380 14 Image plane 1E+18 0.000 specifically for infrared light Reference wavelength: 960 nm. The position of blocking light: the fifth surface and the clear aperture of the fifth surface is 1.800 mm; the sixth surface and the clear aperture of the sixth surface is 1.450 mm; the eleventh surface and the clear aperture of the eleventh surface is 1.800 mm

TABLE 4 Coefficients of the aspheric surfaces Surface 2 3 4 5 6 7 8 k  1.593690E+00  2.697454E+01  3.465905E−17 5.030659E−01 −6.417137E−01 −5.323393E−01 −9.000000E+01 A4 −3.003049E−02 −3.380210E−02  1.362964E−01 7.986673E−02 −1.061838E−01 −9.510344E−02  2.253081E−02 A6 −1.627245E−02 −2.705232E−02 −1.692707E−01 −9.326553E−02  −4.525690E−03  7.348059E−02  1.289369E−01 A8 −5.849225E−03 −3.314322E−02  9.337756E−02 9.493576E−02 −4.278588E−02 −2.741517E−01 −2.149225E−01 A10  1.064875E−02  4.662520E−02 −5.129589E−03 −4.450284E−02   1.220400E−02  2.831786E−01  2.310671E−01 A12 −1.200214E−02 −2.179400E−02 −1.193757E−02 9.832331E−03  1.071322E−02 −1.547919E−01 −1.424939E−01 A14  5.117206E−03  4.658936E−03  4.049349E−03 −9.334366E−04  −6.108465E−03  4.422648E−02  4.582858E−02 A16 −7.583331E−04 −3.949062E−04 −4.344462E−04 2.022178E−05  8.949384E−04 −5.301173E−03 −6.196864E−03 Surface 9 10 11 k −1.679640E−01 6.926229E+00 −4.211404E−01 A4  3.479956E−01 9.958660E−02 −1.836656E−01 A6 −4.464230E−01 −3.976687E−01   1.211541E−02 A8  5.774122E−01 4.169792E−01  2.756993E−02 A10 −4.943258E−01 −2.592580E−01  −2.187309E−02 A12  2.769709E−01 9.490728E−02  7.182626E−03 A14 −8.610039E−02 −1.819251E−02  −1.119505E−03 A16  1.098568E−02 1.398015E−03  6.159703E−05

An equation of the aspheric surfaces of the second embodiment is the same as that of the first embodiment, and the definitions are the same as well.

The exact parameters of the second embodiment based on Table 3 and Table 4 are listed in the following table:

Second embodiment (Reference wavelength: 960 nm) |f/f1|           |f/f2|      |f/f3| |f/f4|      |f/f5| |f1/f2| 0.51918 0.15049 0.18357 1.00586 0.89777 0.28987 ΣPPP ΣNPR        ΣPPP/|ΣNPR| IN12/f       IN45/f |f2/f3| 1.1564  1.6005  0.7225  0.1069  0.0594  1.2198  TP3/(IN23 + TP3 + IN34) (TP1 + IN12)/TP2 (TP5 + IN45)/TP4 0.30882 1.90973 0.88866 HOS InTL      HOS/HOI  InS/HOS ODT % TDT % 4.71594 3.87371 2.35797 1.11355 3.11877  0.530551 HVT11 HVT12 HVT21 HVT22 HVT31 HVT32 1.22939 0.689511 0     0     0     0     HVT41 HVT42 HVT51 HVT52      HVT52/HOI HVT52/HOS  0.69890 1.15831 0.84858 1.32378 0.42429 0.17994 TP2/TP3         TP3/TP4 InRS51 InRS52   |InRS51|/TP5 |InRS52|/TP5     1.96037 0.43967 −0.104915  0.154754 0.25293 0.37308 PSTA PLTA NSTA NLTA SSTA SLTA −0.017 mm −0.0001 mm 0.028 mm 0.014 mm −0.024 mm −0.001 mm

The figures related to the profile curve lengths obtained based on Table 3 and Table 4 are listed in the following table:

Second embodiment (Reference wavelength: 960 nm) ARE ARE 1/2(HEP) value ARE-1/2(HEP) 2(ARE/HEP) % TP ARE/TP (%) 11 1.683 1.783 0.101 105.98% 0.778 229.31% 12 1.709 1.835 0.126 107.39% 0.778 235.98% 21 1.709 1.740 0.032 101.85% 0.574 303.40% 22 1.709 1.771 0.063 103.66% 0.574 308.80% 31 1.450 1.554 0.104 107.15% 0.293 530.97% 32 1.423 1.546 0.123 108.61% 0.293 528.22% 41 1.451 1.474 0.023 101.60% 0.666 221.43% 42 1.513 1.546 0.033 102.17% 0.666 232.33% 51 1.628 1.651 0.023 101.43% 0.415 398.10% 52 1.709 1.740 0.031 101.80% 0.415 419.42% ARS ARS EHD value ARS-EHD (ARS/EHD)% TP ARS/TP (%) 11 1.683 1.783 0.101 105.98% 0.778 229.31% 12 1.803 2.000 0.196 110.87% 0.778 257.12% 21 1.713 1.746 0.033 101.93% 0.574 304.31% 22 1.800 1.898 0.098 105.42% 0.574 330.79% 31 1.450 1.554 0.104 107.15% 0.293 530.97% 32 1.423 1.546 0.123 108.61% 0.293 528.22% 41 1.451 1.474 0.023 101.60% 0.666 221.43% 42 1.513 1.546 0.033 102.17% 0.666 232.33% 51 1.628 1.651 0.023 101.43% 0.415 398.10% 52 1.800 1.835 0.035 101.94% 0.415 442.39%

The results of the equations of the second embodiment based on Table 3 and Table 4 are listed in the following table:

Values related to the inflection points of the second embodiment (Reference wavelength: 960 nm) HIF111 0.8308 HIF111/HOI 0.4154 SGI111 0.1118 |SGI111|/(|SGI111| + TP1) 0.1257 HIF121 0.4332 HIF121/HOI 0.2166 SGI121 0.0084 |SGI121|/(|SGI121| + TP1) 0.0107 HIF211 1.0186 HIF211/HOI 0.5093 SGI211 −0.1371 |SGI211|/(|SGI211| + TP2) 0.1929 HIF212 1.4516 HIF212/HOI 0.7258 SGI212 −0.2112 |SGI212|/(|SGI212| + TP2) 0.2691 HIF221 0.9848 HIF221/HOI 0.4924 SGI221 −0.1603 |SGI221|/(|SGI221| + TP2) 0.2184 HIF222 1.2602 HIF222/HOI 0.6301 SGI222 −0.2324 |SGI222|/(|SGI222| + TP2) 0.2883 HIF311 0.8133 HIF311/HOI 0.4066 SGI311 0.2675 |SGI311|/(|SGI311| + TP3) 0.4776 HIF312 1.3551 HIF312/HOI 0.6776 SGI312 0.4932 |SGI312|/(|SGI312| + TP3) 0.6276 HIF321 0.8535 HIF321/HOI 0.4267 SGI321 0.3054 |SGI321|/(|SGI321| + TP3) 0.5107 HIF322 1.4089 HIF322/HOI 0.7044 SGI322 0.5538 |SGI322|/(|SGI322| + TP3) 0.6543 HIF411 0.3969 HIF411/HOI 0.1985 SGI411 −0.0129 |SGI411|/(|SGI411| + TP4) 0.0190 HIF412 1.2719 HIF412/HOI 0.6360 SGI412 0.0877 |SGI412|/(|SGI412| + TP4) 0.1164 HIF421 0.7211 HIF421/HOI 0.3605 SGI421 −0.1273 |SGI421|/(|SGI412| + TP4) 0.1606 HIF422 1.4109 HIF422/HOI 0.7055 SGI422 −0.1623 |SGI422|/(|SGI422| + TP4) 0.1960 HIF423 1.4680 HIF423/HOI 0.7340 SGI423 −0.1445 |SGI423|/(|SGI423| + TP4) 0.1783 HIF511 0.5322 HIF511/HOI 0.2661 SGI511 0.0288 |SGI511|/(|SGI511| + TP5) 0.0650 HIF512 1.3461 HIF512/HOI 0.6730 SGI512 −0.0483 |SGI512|/(|SGI512| + TP5) 0.1044 HIF521 0.6528 HIF521/HOI 0.3264 SGI521 0.1162 |SGI521|/(|SGI521| + TP5) 0.2189 HIF522 1.7251 HIF522/HOI 0.8626 SGI522 0.1742 |SGI522|/(|SGI522| + TP5) 0.2958

Third Embodiment

As shown in FIG. 3A and FIG. 3B, an optical image capturing system 30 of the third embodiment of the present invention includes, along an optical axis from an object side to an image side, a first lens 310, an aperture 300, a second lens 320, a third lens 330, a fourth lens 340, a fifth lens 350, an infrared rays filter 370, an image plane specifically for the infrared light 380, and an image sensor 390. FIG. 3C is a transverse aberration diagram at 0.7 field of view of the third embodiment of the present application.

The first lens 310 has negative refractive power and is made of plastic. An object-side surface 312 thereof, which faces the object side, is a convex surface, and an image-side surface 314 thereof, which faces the image side, is a convex surface; both of the object-side surface 312 and the image-side surface 314 are aspheric surfaces. The image-side surface 314 has an inflection point.

The second lens 320 has positive refractive power and is made of plastic. An object-side surface 322 thereof, which faces the object side, is a convex surface, and an image-side surface 324 thereof, which faces the image side, is a concave surface; both of the object-side surface 322 and the image-side surface 324 are aspheric surfaces. The object-side surface 322 has an inflection point, and the image-side surface 324 has two inflection points.

The third lens 330 has negative refractive power and is made of plastic. An object-side surface 332 thereof, which faces the object side, is a convex surface, and an image-side surface 334 thereof, which faces the image side, is a concave surface; both of the object-side surface 332 and the image-side surface 334 are aspheric surfaces. The object-side surface 332 has two inflection points, and the image-side surface 334 has two inflection points.

The fourth lens 340 has negative refractive power and is made of plastic. An object-side surface 342, which faces the object side, is a convex aspheric surface, and an image-side surface 344, which faces the image side, is a convex aspheric surface. The object-side surface 342 has two inflection points, and the image-side surface 344 has two inflection points.

The fifth lens 350 has positive refractive power and is made of plastic. An object-side surface 352, which faces the object side, is a concave aspheric surface, and an image-side surface 354, which faces the image side, is a convex aspheric surface. The object-side surface 352 has an inflection point, and the image-side surface 354 has an inflection point. It may help to shorten the back focal length to keep small in size.

The infrared rays filter 370 is made of glass and between the fifth lens 350 and the image plane specifically for the infrared light 380. The infrared rays filter 370 gives no contribution to the focal length of the system.

The parameters of the lenses of the third embodiment are listed in Table 5 and Table 6.

TABLE 5 f = 4.4855 mm; f/HEP = 0.9; HAF = 35.4165 deg Focal Radius of Thickness Refractive Abbe length Surface curvature (mm) (mm) Material index number (mm) 0 Object 1E+18 1E+18 1 1^(st) lens 4.728166107 0.728 plastic 1.661 20.390 −22.513 2 3.359600032 0.672 3 Aperture 1E+18 0.025 4 2^(nd) lens 3.545728266 1.582 plastic 1.661 20.390 6.20095 5 23.61125425 1.024 6 3^(rd) lens −1.939604308 0.429 plastic 1.584 29.890 −41.6516 7 −2.280488919 0.060 8 4^(th) lens 7.163876962 1.594 plastic 1.661 20.390 −22.2468 9 4.37529607 0.385 10 5^(th) lens 1.501472698 1.198 plastic 1.661 20.390 3.95426 11 2.459451582 0.780 12 Infrared rays 1E+18 0.215 BK_7 1.517 23.89 filter 13 1E+18 0.749 14 Image plane 1E+18 0.000 specifically for infrared light Reference wavelength: 960 nm. The position of blocking light: the first surface and the clear aperture of the first surface is 2.600 mm; the second surface and the clear aperture of the second surface is 2.420 mm; the seventh surface and the clear aperture of the seventh surface is 2.600 mm; the eighth surface and the clear aperture of the eighth surface is 2.700 mm; the eleventh surface and the clear aperture of the eleventh surface is 3.200 mm

TABLE 6 Coefficients of the aspheric surfaces Surface 1 2 4 5 6 7 8 k  8.728288E−01  6.543236E−01  9.390313E−01 8.445844E+01 −9.921677E−01 −4.031430E−01 −6.203837E+01 A4 −1.355366E−02 −4.189049E−02 −2.312252E−02 −1.553982E−02   2.099630E−02  4.573828E−02  1.558567E−02 A6 −7.364970E−04  1.039168E−02 −4.656588E−03 −6.601903E−03  −2.647195E−02 −3.428234E−02 −1.005099E−02 A8  2.438920E−03 −2.687114E−03  3.197904E−03 2.700347E−03  1.753815E−02  1.944390E−02  4.000787E−03 A10 −9.277409E−04  6.579992E−04 −1.567512E−03 −6.809685E−04  −5.309843E−03 −5.439089E−03 −1.015102E−03 A12  1.694673E−04 −1.423150E−04  4.087334E−04 1.194612E−04  8.525850E−04  8.089113E−04  1.443513E−04 A14 −1.531728E−05  1.968519E−05 −5.802422E−05 −1.25971IE−05  −7.153456E−05 −6.205946E−05 −1.021286E−05 A16  5.518327E−07 −1.226595E−06  3.342162E−06 5.702277E−07  2.482085E−06  1.952253E−06  2.814575E−07 Surface 9 10 11 k −8.999985E+01 −5.679687E+00 −6.409168E−01 A4 −4.447668E−02  4.442842E−02  1.327452E−02 A6  1.036192E−02 −2.994081E−02 −2.236679E−02 A8 −1.256354E−03  8.118871E−03  6.707407E−03 A10  6.904855E−07 −1.340317E−03 −1.155388E−03 A12  2.282086E−05  1.361315E−04  1.167457E−04 A14 =3.020187E−06 −7.734135E−06 −6.403567E−06 A16  1.553855E−07  1.871928E−07  1.468206E−07

An equation of the aspheric surfaces of the third embodiment is the same as that of the first embodiment, and the definitions are the same as well.

The exact parameters of the third embodiment based on Table 5 and Table 6 are listed in the following table:

Third embodiment (Reference wavelength: 960 nm) |f/f1|           |f/f2|      |f/f3| |f/f4|      |f/f5| |f1/f2| 0.19924 0.72336 0.10769 0.20162 1.13435 3.63057 ΣPPP ΣNPR        ΣPPP/|ΣNPR| IN12/f       IN45/f |f2/f3| 2.0593  0.3069  6.7094  0.1553  0.0858  0.1489  TP3/(IN23 + TP3 + IN34) (TP1 + IN12)/TP2 (TP5 + IN45)/TP4 0.10858 0.28374 0.90038 HOS InTL      HOS/HOI  InS/HOS ODT % TDT % 9.33806 7.69612 2.82972 0.85016 3.45797 2.44413 HVT11 HVT12 HVT21 HVT22 HVT31 HVT32 0     0     1.71775  0.750306 0     0     HVT41 HVT42 HVT51 HVT52      HVT52/HOI HVT52/HOS  0     0.88550 2.18167 2.37836 0.66111 0.23363 TP2/TP3         TP3/TP4 InRS51 InRS52   |InRS51|/TP5 |InRS52|/TP5     3.68437 0.26933  0.470244  0.384968 0.39242 0.32126 PSTA PLTA NSTA NLTA SSTA SLTA 0.024 mm 0.052 mm −0.031 mm −0.039 mm −0.020 mm −0.010 mm

The figures related to the profile curve lengths obtained based on Table 5 and Table 6 are listed in the following table:

Third embodiment (Reference wavelength: 960 nm) ARE ½(HEP) ARE value ARE − ½(HEP) 2(ARE/HEP) % TP ARE/TP (%) 11 2.538 2.658 0.120 104.74% 0.728 365.38% 12 2.420 2.480 0.060 102.46% 0.728 340.83% 21 2.316 2.399 0.083 103.60% 1.582 151.69% 22 2.508 2.671 0.163 106.51% 1.582 168.88% 31 2.469 2.771 0.302 112.23% 0.429 645.34% 32 2.538 2.746 0.208 108.21% 0.429 639.71% 41 2.538 2.553 0.015 100.60% 1.594 160.17% 42 2.538 2.581 0.043 101.70% 1.594 161.93% 51 2.538 2.642 0.104 104.10% 1.198 220.47% 52 2.538 2.632 0.094 103.72% 1.198 219.68% ARS EHD ARS value ARS − EHD (ARS/EHD)% TP ARS/TP (%) 11 2.600 2.741 0.141 105.42% 0.728 376.76% 12 2.420 2.480 0.060 102.46% 0.728 340.83% 21 2.316 2.399 0.083 103.60% 1.582 151.69% 22 2.508 2.671 0.163 106.51% 1.582 168.88% 31 2.469 2.771 0.302 112.23% 0.429 645.34% 32 2.600 2.830 0.230 108.84% 0.429 659.13% 41 2.700 2.725 0.025 100.91% 1.594 170.93% 42 2.675 2.720 0.045 101.70% 1.594 170.63% 51 2.895 3.018 0.123 104.25% 1.198 251.83% 52 3.200 3.349 0.149 104.67% 1.198 279.50%

The results of the equations of the third embodiment based on Table 5 and Table 6 are listed in the following table:

Values related to the inflection points of the third embodiment (Reference wavelength: 960 nm) HIF121 2.2153 HIF121/HOI 0.6713 SGI121 0.4374 |SGI121|/(|SGI121| + TP1) 0.3755 HIF211 1.0490 HIF211/HOI 0.3179 SGI211 0.1309 |SGI211|/(|SGI211| + TP2) 0.0765 HIF221 0.4485 HIF221/HOI 0.1359 SGI221 0.0036 |SGI221|/(|SGI221| + TP2) 0.0023 HIF222 2.4091 HIF222/HOI 0.7300 SGI222 −0.5444 |SGI222|/(|SGI222| + TP2) 0.2561 HIF311 1.5801 HIF311/HOI 0.4788 SGI311 −0.5922 |SGI311|/(|SGI311| + TP3) 0.5797 HIF312 1.9528 HIF312/HOI 0.5918 SGI312 −0.8269 |SGI312|/(|SGI312| + TP3) 0.6582 HIF321 1.4573 HIF321/HOI 0.4416 SGI321 −0.3967 |SGI321|/(|SGI321| + TP3) 0.4803 HIF322 1.8059 HIF322/HOI 0.5472 SGI322 −0.5535 |SGI322|/(|SGI322| + TP3) 0.5632 HIF411 1.5084 HIF411/HOI 0.4571 SGI411 0.1332 |SGI411|/(|SGI411| + TP4) 0.0771 HIF412 2.1733 HIF412/HOI 0.6586 SGI412 0.2150 |SGI412|/(|SGI412| + TP4) 0.1188 HIF421 0.4324 HIF421/HOI 0.1310 SGI421 0.0166 |SGI421|/(|SGI421| + TP4) 0.0103 HIF422 2.1929 HIF422/HOI 0.6645 SGI422 −0.2108 |SGI422|/(|SGI422| + TP4) 0.1168 HIF511 1.1222 HIF511/HOI 0.3401 SGI511 0.3165 |SGI511|/(|SGI511| + TP5) 0.2089 HIF521 1.2763 HIF521/HOI 0.3867 SGI521 0.3141 |SGI521|/(|SGI521| + TP5) 0.2077

Fourth Embodiment

As shown in FIG. 4A and FIG. 4B, an optical image capturing system 40 of the fourth embodiment of the present invention includes, along an optical axis from an object side to an image side, a first lens 410, an aperture 400, a second lens 420, a third lens 430, a fourth lens 440, a fifth lens 450, an infrared rays filter 470, an image plane specifically for the infrared light 480, and an image sensor 490. FIG. 4C is a transverse aberration diagram at 0.7 field of view of the fourth embodiment of the present application.

The first lens 410 has positive refractive power and is made of plastic. An object-side surface 412 thereof, which faces the object side, is a convex surface, and an image-side surface 414 thereof, which faces the image side, is a convex surface; both of the object-side surface 412 and the image-side surface 414 are aspheric surfaces. The object-side surface 412 has an inflection point, and the image-side surface 414 has an inflection point.

The second lens 420 has negative refractive power and is made of plastic. An object-side surface 422 thereof, which faces the object side, is a convex aspheric surface, and an image-side surface 424 thereof, which faces the image side, is a concave aspheric surface. The object-side surface 422 has an inflection point, and the image-side surface 424 has an inflection point.

The third lens 430 has positive refractive power and is made of plastic. An object-side surface 432 thereof, which faces the object side, is a convex surface, and an image-side surface 434 thereof, which faces the image side, is a convex surface; both of the object-side surface 432 and the image-side surface 434 are aspheric surfaces. The object-side surface 432 has an inflection point, and the image-side surface 434 has two inflection points.

The fourth lens 440 has positive refractive power and is made of plastic. An object-side surface 442, which faces the object side, is a concave surface, and an image-side surface 444, which faces the image side, is a convex surface; both of the object-side surface 442 and the image-side surface 444 are aspheric surfaces. The object-side surface 442 has three inflection points, and the image-side surface 444 has an inflection point.

The fifth lens 450 has negative refractive power and is made of plastic. An object-side surface 452, which faces the object side, is a convex surface, and an image-side surface 454, which faces the image side, is a concave surface; both of the object-side surface 452 and the image-side surface 454 are aspheric surfaces. The object-side surface 452 has an inflection point, and the image-side surface 454 has an inflection point. It may help to shorten the back focal length to keep small in size.

The infrared rays filter 470 is made of glass and between the fifth lens 450 and the image plane specifically for the infrared light 480. The infrared rays filter 470 gives no contribution to the focal length of the system.

The parameters of the lenses of the fourth embodiment are listed in Table 7 and Table 8.

TABLE 7 f = 3.7375 mm; f/HEP = 0.9; HAF = 40.0 deg Focal Radius of Thickness Refractive Abbe length Surface curvature (mm) (mm) Material index number (mm) 0 Object 1E+18 1E+18 1 1^(st) lens 6.639990197 1.132 plastic 1.661 20.390 5.86765 2 −8.404194369 0.292 3 Aperture 1E+18 0.026 4 2^(nd) lens 5.582903484 0.276 plastic 1.584 29.890 −8.29441 5 2.474329642 0.397 6 3^(rd) lens 5.630788647 0.960 plastic 1.661 20.390 6.83377 7 −19.74554188 0.226 8 4^(th) lens −2.958448239 1.371 plastic 1.661 20.390 6.31234 9 −2.036680821 0.050 10 5^(th) lens 2.621058282 0.900 plastic 1.661 20.390 −33.3476 11 2.022023734 0.719 12 Infrared rays 1E+18 0.215 BK_7 filter 13 1E+18 0.750 14 Image plane 1E+18 0.000 specifically for infrared light Reference wavelength: 960 nm. The position of blocking light: the first surface and the clear aperture of the first surface is 2.650 mm; the seventh surface and the clear aperture of the seventh surface is 2.240 mm; the eleventh surface and the clear aperture of the eleventh surface is 3.200 mm;

TABLE 8 Coefficients of the aspheric surfaces Surface 1 2 4 5 6 7 8 k  3.860456E+00 −6.741883E+01  2.143984E+00 −2.688272E−01 −7.753847E+00 −1.574199E+01 −2.779203E+00 A4 −7.549090E−03 −8.038252E−04 −6.189103E−02 −1.035005E−01 −8.835968E−03  3.435062E−02  7.156201E−02 A6  3.907000E−03  9.724105E−04  5.407646E−02  3.691991E−02 −2.408256E−02 −9.770166E−04 −3.430538E−02 A8 −2.169167E−03  8.740952E−04 −4.810557E−02 −1.556006E−02  2.476770E−02 −1.154149E−03  2.931102E−02 A10  6.848064E−04 −6.349056E−04  3.097083E−02  3.277084E−03 −2.304949E−02 −2.854454E−03 −1.654238E−02 A12 −1.215338E−04  1.812762E−04 −1.214271E−02 −4.090561E−04  1.062859E−02  1.200497E−03  4.383475E−03 A14  1.174107E−05 −2.342057E−05  2.492343E−03  7.761500E−05 −2.245366E−03 −1.755367E−04 −5.372325E−04 A16 −4.797204E−07  1.119576E−06 −2.075099E−04 −1.206673E−05  1.760683E−04  9.053857E−06  2.502191E−05 Surface 9 10 11 k −1.265437E+00 −2.588700E+00 −5.943835E+00 A4  3.948290E−02 −1.979829E−02 −2.376332E−03 A6 −3.057765E−02  1.606013E−02  1.307309E−02 A8  1.745063E−02 −9.004992E−03 −8.089183E−03 A10 −6.595221E−03  2.150697E−03  1.886571E−03 A12  1.508809E−03 −2.517956E−04 −2.191968E−04 A14 −1.864643E−04  1.413413E−05  1.276560E−05 A16  9.954648E−06 −2.945607E−07 −2.986422E−07

An equation of the aspheric surfaces of the fourth embodiment is the same as that of the first embodiment, and the definitions are the same as well.

The exact parameters of the fourth embodiment based on Table 7 and Table 8 are listed in the following table:

Fourth embodiment (Reference wavelength: 960 nm) |f/f1|           |f/f2|      |f/f3| |f/f4|      |f/f5| |f1/f2| 0.63697 0.45061 0.54692 0.59210 0.11208 0.70742 ΣPPP ΣNPR        ΣPPP/|ΣNPR| IN12/f       IN45/f |f2/f3| 1.1548  1.1839  0.9754  0.0849  0.0135  1.2137  TP3/(IN23 + TP3 + IN34) (TP1 + IN12)/TP2 (TP5 + IN45)/TP4 0.60651 5.25513 0.69343 HOS InTL      HOS/HOI  InS/HOS ODT % TDT % 7.21294 5.63017 2.18574 0.80259 3.9371  2.63497 HVT11 HVT12 HVT21 HVT22 HVT31 HVT32 0     1.83879 1.49617 1.30353 1.10775 0     HVT41 HVT42 HVT51 HVT52      HVT52/HOI HVT52/HOS  2.14095 2.15748 2.16966 2.24000 0.65747 0.30080 TP2/TP3         TP3/TP4 InRS51 InRS52   |InRS51|/TP5 |InRS52|/TP5     0.28725 0.70058  0.409379  0.411832 0.45474 0.45746 PSTA PLTA NSTA NLTA SSTA SLTA −0.046 mm −0.018 mm −0.148 mm −0.186 mm −0.030 mm −0.006 mm

The figures related to the profile curve lengths obtained based on Table 7 and Table 8 are listed in the following table:

Fourth embodiment (Reference wavelength: 960 nm) ARE ARE 1/2(HEP) value ARE-1/2(HEP) 2(ARE/HEP) % TP ARE/TP (%) 11 2.030 2.057 0.027 101.32% 1.132 181.63% 12 2.030 2.032 0.002 100.11% 1.132 179.48% 21 1.873 1.893 0.020 101.08% 0.276 686.28% 22 1.936 2.012 0.076 103.91% 0.276 729.33% 31 1.930 2.027 0.097 105.01% 0.960 211.05% 32 2.030 2.095 0.065 103.22% 0.960 218.19% 41 2.030 2.054 0.024 101.18% 1.371 149.84% 42 2.030 2.200 0.170 108.37% 1.371 160.48% 51 2.030 2.083 0.053 102.62% 0.900 231.40% 52 2.030 2.109 0.079 103.90% 0.900 234.28% ARS ARS EHD value ARS-EHD (ARS/EHD)% TP ARS/TP (%) 11 2.650 2.749 0.099 103.72% 1.132 242.74% 12 2.328 2.333 0.005 100.23% 1.132 206.06% 21 1.873 1.893 0.020 101.08% 0.276 686.28% 22 1.936 2.012 0.076 103.91% 0.276 729.33% 31 1.930 2.027 0.097 105.01% 0.960 211.05% 32 2.240 2.408 0.168 107.50% 0.960 250.74% 41 2.318 2.350 0.032 101.38% 1.371 171.43% 42 2.250 2.430 0.180 108.00% 1.371 177.25% 51 2.670 2.725 0.055 102.07% 0.900 302.67% 52 3.200 3.355 0.155 104.86% 0.900 372.72%

The results of the equations of the fourth embodiment based on Table 7 and Table 8 are listed in the following table:

Values related to the inflection points of the fourth embodiment (Reference wavelength: 960 nm) HIF111 2.6272 HIF111/HOI 0.7961 SGI111 0.5782 |SGI111|/(|SGI111| + TP1) 0.3380 HIF121 1.0656 HIF121/HOI 0.3229 SGI121 −0.054446 |SGI121|/(|SGI121| + TP1) 0.0459 HIF211 0.8371 HIF211/HOI 0.2537 SGI211 0.0445 |SGI211|/(|SGI211| + TP2) 0.1390 HIF221 0.7159 HIF221/HOI 0.2169 SGI221 0.0820262 |SGI221|/(|SGI221| + TP2) 0.2292 HIF311 0.7078 HIF311/HOI 0.2145 SGI311 0.0390949 |SGI311|/(|SGI311| + TP3) 0.0391 HIF321 0.3514 HIF321/HOI 0.1065 SGI321 −0.0026 |SGI321|/(|SGI321| + TP3) 0.0027 HIF322 1.1479 HIF322/HOI 0.3479 SGI322 0.0148 |SGI322|/(|SGI322| + TP3) 0.0152 HIF411 0.6964 HIF411/HOI 0.2110 SGI411 −0.065894 |SGI411|/(|SGI411| + TP4) 0.0459 HIF412 1.3042 HIF412/HOI 0.3952 SGI412 −0.1323 |SGI412|/(|SGI412| + TP4) 0.0880 HIF413 1.8697 HIF413/HOI 0.5666 SGI413 −0.2313 |SGI413|/(|SGI413| + TP4) 0.1444 HIF421 1.7423 HIF421/HOI 0.5280 SGI421 −0.6124 |SGI421|/(|SGI421| + TP4) 0.3088 HIF511 1.2516 HIF511/HOI 0.3793 SGI511 0.251587 |SGI511|/(|SGI511| + TP5) 0.2184 HIF521 1.3168 HIF521/HOI 0.3990 SGI521 0.322797 |SGI521|/(|SGI521| + TP5) 0.2639

Fifth Embodiment

As shown in FIG. 5A and FIG. 5B, an optical image capturing system 50 of the fifth embodiment of the present invention includes, along an optical axis from an object side to an image side, a first lens 510, an aperture 500, a second lens 520, a third lens 530, a fourth lens 540, a fifth lens 550, an infrared rays filter 570, an image plane specifically for the infrared light 580, and an image sensor 590. FIG. 5C is a transverse aberration diagram at 0.7 field of view of the fifth embodiment of the present application.

The first lens 510 has positive refractive power and is made of plastic. An object-side surface 512, which faces the object side, is a convex aspheric surface, and an image-side surface 514, which faces the image side, is a convex aspheric surface.

The second lens 520 has negative refractive power and is made of plastic. An object-side surface 522 thereof, which faces the object side, is a convex surface, and an image-side surface 524 thereof, which faces the image side, is a concave surface; both of the object-side surface 522 and the image-side surface 524 are aspheric surfaces. The object-side surface 522 has an inflection point, and the image-side surface 524 has an inflection point.

The third lens 530 has positive refractive power and is made of plastic. An object-side surface 532, which faces the object side, is a convex aspheric surface, and an image-side surface 534, which faces the image side, is a convex aspheric surface. The object-side surface 532 has an inflection point.

The fourth lens 540 has positive refractive power and is made of plastic. An object-side surface 542, which faces the object side, is a concave surface, and an image-side surface 544, which faces the image side, is a convex surface; both of the object-side surface 542 and the image-side surface 544 are aspheric surfaces. The object-side surface 542 has an inflection point, and the image-side surface 544 has an inflection point.

The fifth lens 550 has positive refractive power and is made of plastic. An object-side surface 552, which faces the object side, is a convex surface, and an image-side surface 554, which faces the image side, is a concave surface; both of the object-side surface 552 and the image-side surface 554 are aspheric surfaces. The object-side surface 552 has an inflection point, and the image-side surface 554 has an inflection point. It may help to shorten the back focal length to keep small in size.

The infrared rays filter 570 is made of glass and between the fifth lens 550 and the image plane specifically for the infrared light 580. The infrared rays filter 570 gives no contribution to the focal length of the system.

The parameters of the lenses of the fifth embodiment are listed in Table 9 and Table 10.

TABLE 9 f = 3.7323 mm; f/HEP = 1.3; HAF = 40.0 deg Focal Radius of Thickness Refractive Abbe length Surface curvature (mm) (mm) Material index number (mm) 0 Object 1E+18 1E+18 1 1^(st) lens 13.69792597 0.502 plastic 1.661 20.390 9.76332 2 −11.73817016 0.025 3 Aperture 1E+18 0.025 4 2^(nd) lens 2.90908358 0.416 plastic 1.661 20.390 −67.1252 5 2.573850988 0.582 6 3^(rd) lens 11.78078656 1.160 plastic 1.661 20.390 9.38263 7 −12.2516735 0.511 8 4^(th) lens −1.701375863 0.824 plastic 1.661 20.390 12.2112 9 −1.669988314 0.050 10 5^(th) lens 1.711982254 0.866 plastic 1.661 20.390 28.5378 11 1.508741986 0.839 12 Infrared rays 1E+18 0.215 1.517 64.13 filter 13 1E+18 0.750 14 Image plane 1E+18 0.000 specifically for infrared light Reference wavelength: 960 nm. The position of blocking light: the seventh surface and the clear aperture of the seventh surface is 2.240 mm; the eleventh surface and the clear aperture of the eleventh surface is 3.200 mm.

TABLE 10 Coefficients of the aspheric surfaces Surface 1 2 4 5 6 7 8 k −9.000000E+01 −8.999353E+01  −1.834303E−01 −1.281539E−01 −1.829434E+01 2.766666E+01 −6.228892E+00 A4  1.668066E−02 0.000000E+00 −6.635996E−02 −8.777918E−02 −1.651917E−02 1.506490E−02 −2.304016E−04 A6 −4.575165E−03 0.000000E+00  9.908556E−03  1.408125E−04 −2.424212E−02 −1.750159E−02  −2.354460E−02 A8 −4.244476E−03 0.000000E+00  6.213225E−03  1.172314E−02  2.374257E−02 1.578092E−02  3.277495E−02 A10  5.251807E−03 0.000000E+00 −1.489843E−02 −1.709067E−02 −2.463636E−02 −9.784463E−03  −1.709753E−02 A12 −2.429540E−03 0.000000E+00  1.106141E−02  1.033375E−02  1.131118E−02 2.750614E−03  4.321690E−03 A14  5.337470E−04 0.000000E+00 −4.015732E−03 −3.034933E−03 −2.229627E−03 −3.542046E−04  −5.284499E−04 A16 −4.607969E−05 0.000000E+00  5.675739E−04  3.592691E−04  1.523757E−04 1.701515E−05  2.527004E−05 Surface 9 10 11 k −3.260151E+00 −1.854287E+00 −7.848022E−01 A4 −5.474072E−02 −6.500228E−02 −1.082420E−01 A6  2.050674E−02  2.721995E−02  3.551303E−02 A8 −1.288539E−03 −8.524146E−03 −1.060399E−02 A10 −2.633605E−03  1.558680E−03  2.015819E−03 A12  1.436740E−03 −1.616950E−04 −2.366056E−04 A14 −2.926964E−04  8.031032E−06  1.536828E−05 A16  2.182593E−05 −1.050004E−07 −4.249358E−07

An equation of the aspheric surfaces of the fifth embodiment is the same as that of the first embodiment, and the definitions are the same as well.

The exact parameters of the fifth embodiment based on Table 9 and Table 10 are listed in the following table:

Fifth embodiment (Reference wavelength: 960 nm) |f/f1|           |f/f2|      |f/f3| |f/f4|      |f/f5| |f1/f2| 0.38228 0.05560 0.39779 0.30565 0.13079 0.14545 ΣPPP ΣNPR        ΣPPP/|ΣNPR| IN12/f       IN45/f |f2/f3| 0.4920  0.7801  0.6308  0.0134  0.0134  7.1542  TP3/(IN23 + TP3 + IN34) (TP1 + IN12)/TP2 (TP5 + IN45)/TP4 0.51473 1.32626 1.11225 HOS InTL      HOS/HOI  InS/HOS ODT % TDT % 6.66816 4.96072 2.02065 0.92100 3.35224 1.21318 HVT11 HVT12 HVT21 HVT22 HVT31 HVT32 0     0     1.29877 1.1141   0.802735 0     HVT41 HVT42 HVT51 HVT52      HVT52/HOI HVT52/HOS  2.03371 2.00425 2.09732 2.30622 0.63555 0.31453 TP2/TP3         TP3/TP4 InRS51 InRS52   |InRS51|/TP5 |InRS52|/TP5     0.35871 1.40841 0.40586  0.424344 0.46868 0.49002 PSTA PLTA NSTA NLTA SSTA SLTA −0.032 mm −0.0001 mm 0.011 mm 0.006 mm −0.015 mm −0.002 mm

The figures related to the profile curve lengths obtained based on Table 9 and Table 10 are listed in the following table:

Fifth embodiment (Reference wavelength: 960 nm) ARE ARE 1/2(HEP) value ARE-1/2(HEP) 2(ARE/HEP) % TP ARE/TP (%) 11 1.483 1.487 0.004 100.26% 0.502 296.29% 12 1.483 1.484 0.001 100.09% 0.502 295.78% 21 1.483 1.493 0.010 100.66% 0.416 358.78% 22 1.483 1.500 0.017 101.16% 0.416 360.57% 31 1.483 1.515 0.032 102.17% 1.160 130.63% 32 1.483 1.491 0.008 100.52% 1.160 128.52% 41 1.483 1.541 0.058 103.91% 0.824 187.10% 42 1.483 1.628 0.145 109.77% 0.824 197.66% 51 1.483 1.544 0.061 104.10% 0.866 178.26% 52 1.483 1.561 0.078 105.28% 0.866 180.29% ARS ARS EHD value ARS-EHD (ARS/EHD)% TP ARS/TP (%) 11 1.761 1.769 0.008 100.44% 0.502 352.50% 12 1.617 1.620 0.003 100.16% 0.502 322.77% 21 1.534 1.545 0.011 100.73% 0.416 371.36% 22 1.649 1.689 0.041 102.47% 0.416 406.03% 31 1.738 1.863 0.125 107.19% 1.160 160.65% 32 2.240 2.629 0.389 117.36% 1.160 226.66% 41 2.266 2.358 0.092 104.08% 0.824 286.32% 42 2.160 2.390 0.230 110.64% 0.824 290.20% 51 2.734 2.857 0.123 104.48% 0.866 329.91% 52 3.200 3.473 0.273 108.54% 0.866 401.07%

The results of the equations of the fifth embodiment based on Table 9 and Table 10 are listed in the following table:

Values related to the inflection points of the fifth embodiment (Reference wavelength: 960 nm) HIF211 0.7617 HIF211/HOI 0.2308 SGI211 0.0808161 |SGI211|/(|SGI211| + TP2) 0.1626 HIF221 0.6457 HIF221/HOI 0.1957 SGI221 0.0671 |SGI221|/(|SGI221| + TP2) 0.1388 HIF311 0.4989 HIF311/HOI 0.1512 SGI311 0.0091551 |SGI311|/(|SGI311| + TP3) 0.0078 HIF411 1.0798 HIF411/HOI 0.3272 SGI411 −0.2526 |SGI411|/(|SGI411| + TP4) 0.2347 HIF421 1.4306 HIF421/HOI 0.4335 SGI421 −0.568273 |SGI421|/(|SGI421| + TP4) 0.4083 HIF511 1.1520 HIF511/HOI 0.3491 SGI511 0.2843 |SGI511|/(|SGI511| + TP5) 0.2471 HIF521 1.2031 HIF521/HOI 0.3646 SGI521 0.3425 |SGI521|/(|SGI521| + TP5) 0.2834

Sixth Embodiment

As shown in FIG. 6A and FIG. 6B, an optical image capturing system 60 of the sixth embodiment of the present invention includes, along an optical axis from an object side to an image side, a first lens 610, a second lens 620, an aperture 600, a third lens 630, a fourth lens 640, a fifth lens 650, an infrared rays filter 670, an image plane specifically for the infrared light 680, and an image sensor 690. FIG. 6C is a transverse aberration diagram at 0.7 field of view of the sixth embodiment of the present application.

The first lens 610 has negative refractive power and is made of plastic. An object-side surface 612, which faces the object side, is a concave surface, and an image-side surface 614, which faces the image side, is a concave surface both of the object-side surface 612 and the image-side surface 614 are aspheric surfaces. The object-side surface 612 has an inflection point.

The second lens 620 has positive refractive power and is made of plastic. An object-side surface 622 thereof, which faces the object side, is a convex surface, and an image-side surface 624 thereof, which faces the image side, is a concave surface; both of the object-side surface 622 and the image-side surface 624 are aspheric surfaces.

The third lens 630 has positive refractive power and is made of plastic. An object-side surface 632, which faces the object side, is a convex surface, and an image-side surface 634, which faces the image side, is a convex surface; both of the object-side surface 632 and the image-side surface 634 are aspheric surfaces. The object-side surface 632 has an inflection point.

The fourth lens 640 has positive refractive power and is made of plastic. An object-side surface 642, which faces the object side, is a concave surface, and an image-side surface 644, which faces the image side, is a convex surface; both of the object-side surface 642 and the image-side surface 644 are aspheric surfaces. The object-side surface 642 has an inflection point, and the image-side surface 644 has an inflection point.

The fifth lens 650 has negative refractive power and is made of plastic. An object-side surface 652, which faces the object side, is a convex surface, and an image-side surface 654, which faces the image side, is a concave surface; both of the object-side surface 652 and the image-side surface 654 are aspheric surfaces. The object-side surface 652 has an inflection point, and the image-side surface 654 has an inflection point. It may help to shorten the back focal length to keep small in size. In addition, it may reduce an incident angle of the light of an off-axis field of view and correct the aberration of the off-axis field of view.

The infrared rays filter 670 is made of glass and between the fifth lens 650 and the image plane specifically for the infrared light 680. The infrared rays filter 670 gives no contribution to the focal length of the system.

The parameters of the lenses of the sixth embodiment are listed in Table 11 and Table 12.

TABLE 11 f = 3.1259 mm; f/HEP = 1.3; HAF = 45.8012 deg Focal Radius of Thickness Refractive Abbe length Surface curvature (mm) (mm) Material index number (mm) 0 Object 1E+18 1E+18 1 1^(st) lens −10.05209031 0.300 plastic 1.661 20.390 −3.74176 2 3.262965631 0.371 3 2^(nd) lens 2.164609314 0.603 plastic 1.661 20.390 4.27224 4 8.618919172 1.058 5 Aperture 1E+18 0.438 6 3^(rd) lens 15.98454745 1.382 plastic 1.661 20.390 4.74317 7 −3.707216122 1.442 8 4^(th) lens −2.65419837 0.592 plastic 1.661 20.390 9.77548 9 −2.039356685 0.025 10 5^(th) lens 2.116197716 0.872 plastic 1.661 20.390 −79.5084 11 1.702583506 0.703 12 Infrared rays 1E+18 0.215 BK_7 1.517 64.13 filter 13 1E+18 0.750 14 Image plane 1E+18 0.000 specifically for infrared light Reference wavelength: 960 nm. The position of blocking light: the first surface and the clear aperture of the first surface is 3.750 mm; the eighth surface and the clear aperture of the eighth surface is 2.200 mm; the eleventh surface the clear aperture of the eleventh surface is 3.150 mm.

TABLE 12 Coefficients of the aspheric surfaces Surface 1 2 3 4 6 7 8 k −4.388763E+00 −9.861234E−02 −5.303288E−01 2.082031E+01 −2.800078E+01 −2.026502E+00 −1.937394E+00 A4  1.583807E−02 −4.046074E−02 −2.263208E−02 4.549734E−02 −3.285306E−03 −8.490334E−03  6.879109E−02 A6  7.635954E−04  2.970980E−02  7.949813E−03 −4.719477E−02   2.402142E−03 −4.610214E−05 −5.679364E−02 A8 −1.081049E−03 −1.488603E−02  4.639826E−03 6.721614E−02 −3.000109E−03 −4.145148E−04  3.015703E−02 A10  2.557801E−04  4.016857E−03 −4.419942E−03 −4.762429E−02   1.566111E−03  5.765182E−05 −9.733632E−03 A12 −2.889000E−05 −6.033827E−04  1.241969E−03 1.856408E−02 −4.572590E−04  1.009566E−05  1.930755E−03 A14  1.635983E−06  4.806011E−05 −1.349240E−04 −3.791093E−03   6.585500E−05 −5.089814E−06 −2.096630E−04 A16 −3.641999E−08  −1.57257E−06  3.759921E−06 3.269176E−04 −3.598493E−06  4.189958E−07  9.442000E−06 Surface 9 10 11 k −1.073361E+00 −4.782827E−01 −1.317170E+00 A4  2.125608E−02 −8.490463E−02 −8.665980E−02 A6 −6.895599E−03  2.402824E−02  3.239299E−02 A8  3.243184E−03 −6.669311E−03 −9.496669E−03 A10 −8.400800E−04  1.091283E−03  1.806951E−03 A12  1.705811E−04 −9.896273E−05 −2.093190E−04 A14 −1.626733E−05  4.007586E−06  1.327478E−05 A16  5.190320E−07 −6.523434E−08 −3.545020E−07

An equation of the aspheric surfaces of the sixth embodiment is the same as that of the first embodiment, and the definitions are the same as well.

The exact parameters of the sixth embodiment based on Table 11 and Table 12 are listed in the following table:

Sixth embodiment (Reference wavelength: 960 nm) |f/f1|           |f/f2|      |f/f3| |f/f4|      |f/f5| |f1/f2| 0.83542 0.73169 0.65904 0.31977 0.03932 0.87583 ΣPPP ΣNPR        ΣPPP/|ΣNPR| IN12/f       IN45/f |f2/f3| 1.4300  1.1552  1.2379  0.1186  0.0080  0.9007  TP3/(IN23 + TP3 + IN34) (TP1 + IN12)/TP2 (TP5 + IN45)/TP4 0.31997 1.11291 1.51478 HOS InTL      HOS/HOI  InS/HOS ODT % TDT % 8.65290 7.08216 2.62209 0.73063 2.65618 2.2625  HVT11 HVT12 HVT21 HVT22 HVT31 HVT32 1.31587 0     0     0     0     0     HVT41 HVT42 HVT51 HVT52      HVT52/HOI HVT52/HOS  1.93589 1.98905 1.91389 2.25556 0.57997 0.22118 TP2/TP3         TP3/TP4 InRS51 InRS52   |InRS51|/TP5 |InRS52|/TP5     0.43593 2.33550  0.170615  0.197312 0.19575 0.22638 PLTA PSTA NLTA NSTA SLTA SSTA −0.047 mm 0.009 mm 0.009 mm 0.004 mm −0.007 mm 0.009 mm

The figures related to the profile curve lengths obtained based on Table 11 and Table 12 are listed in the following table:

Sixth embodiment (Reference wavelength: 960 nm) ARE ARE 1/2(HEP) value ARE-1/2(HEP) 2(ARE/HEP) % TP ARE/TP (%) 11 1.244 1.245 0.000 100.03% 0.300 414.91% 12 1.244 1.265 0.020 101.62% 0.300 421.53% 21 1.244 1.307 0.062 105.02% 0.603 216.86% 22 1.244 1.268 0.023 101.86% 0.603 210.33% 31 1.244 1.245 0.000 100.03% 1.382 90.04% 32 1.244 1.272 0.027 102.18% 1.382 91.98% 41 1.244 1.266 0.022 101.77% 0.592 213.95% 42 1.244 1.301 0.056 104.53% 0.592 219.75% 51 1.244 1.271 0.026 102.11% 0.872 145.78% 52 1.244 1.288 0.044 103.50% 0.872 147.77% ARS ARS EHD value ARS-EHD (ARS/EHD)% TP ARS/TP (%) 11 3.750 4.749 0.999 126.63% 0.300 1582.90% 12 2.685 2.859 0.174 106.48% 0.300 952.95% 21 2.040 2.350 0.311 115.23% 0.603 390.04% 22 1.741 1.977 0.236 113.54% 0.603 328.09% 31 1.761 1.762 0.001 100.05% 1.382 127.46% 32 2.008 2.184 0.176 108.77% 1.382 158.01% 41 2.200 2.248 0.048 102.18% 0.592 379.80% 42 2.185 2.314 0.128 105.88% 0.592 390.91% 51 2.511 2.589 0.077 103.07% 0.872 296.99% 52 3.150 3.526 0.376 111.93% 0.872 404.51%

The results of the equations of the sixth embodiment based on Table 11 and Table 12 are listed in the following table:

Values related to the inflection points of the sixth embodiment (Reference wavelength: 960 nm) HIF111 0.7168 HIF111/HOI 0.2172 SGI111 −0.0212 |SGI111|/(|SGI111| + TP1) 0.0661 HIF311 1.0598 HIF311/HOI 0.3212 SGI311 0.0307 |SGI311|/(|SGI311| + TP3) 0.0217 HIF411 1.3392 HIF411/HOI 0.4058 SGI411 −0.2420 |SGI411|/(|SGI411| + TP4) 0.2902 HIF421 1.4089 HIF421/HOI 0.4269 SGI421 −0.4196 |SGI421|/(|SGI421| + TP4) 0.4148 HIF511 0.9674 HIF511/HOI 0.2931 SGI511 0.1684 |SGI511|/(|SGI511| + TP5) 0.1619 HIF521 1.0864 HIF521/HOI 0.3292 SGI521 0.2538 |SGI521|/(|SGI521| + TP5) 0.2255

It must be pointed out that the embodiments described above are only some embodiments of the present invention. All equivalent structures which employ the concepts disclosed in this specification and the appended claims should fall within the scope of the present invention. 

What is claimed is:
 1. An optical image capturing system, in order along an optical axis from an object side to an image side, comprising: a first lens having refractive power; a second lens having refractive power; a third lens having refractive power; a fourth lens having refractive power; a fifth lens having refractive power; and an image plane specifically for infrared light; wherein the optical image capturing system has a total of the five lenses with refractive power; at least one lens among the first lens to the fifth lens has positive refractive power; each lens among the first lens to the fifth lens has an object-side surface, which faces the object side, and an image-side surface, which faces the image side; wherein the optical image capturing system satisfies: 0.5≤f/HEP≤0.9; 0 deg<HAF≤50 deg; and 0.9≤2(ARE/HEP)≤2.0; wherein f is a focal length of the optical image capturing system; HEP is an entrance pupil diameter of the optical image capturing system; HAF is a half of a maximum view angle of the optical image capturing system; for any surface of any lens, ARE is a profile curve length measured from a start point where the optical axis passes therethrough, along a surface profile thereof, and finally to a coordinate point of a perpendicular distance where is a half of the entrance pupil diameter away from the optical axis.
 2. The optical image capturing system of claim 1, wherein a wavelength of the infrared light ranges from 700 nm to 1300 nm, and a first spatial frequency is denoted by SP1, which satisfies the following condition: SP1≤440 cycles/mm.
 3. The optical image capturing system of claim 1, wherein a wavelength of the infrared light ranges from 850 nm to 960 nm, and a first spatial frequency is denoted by SP1, which satisfies the following condition: SP1≤220 cycles/mm.
 4. The optical image capturing system of claim 1, wherein the optical image capturing system further satisfies: PLTA≤100 μm; PSTA≤100 μm; NLTA≤100 μm; NSTA≤100 μm; SLTA≤100 μm; SSTA≤100 μm; and |TDT|≤100%; wherein TDT is a TV distortion; HOI is a maximum height for image formation perpendicular to the optical axis on the image plane specifically for infrared light; PLTA is a transverse aberration at 0.7 HOI on the image plane in the positive direction of a tangential fan of the optical image capturing system after a longest operation wavelength passing through an edge of the aperture; PSTA is a transverse aberration at 0.7 HOI on the image plane in the positive direction of the tangential fan after a shortest operation wavelength passing through the edge of the aperture; NLTA is a transverse aberration at 0.7 HOI on the image plane in the negative direction of the tangential fan after the longest operation wavelength passing through the edge of the aperture; NSTA is a transverse aberration at 0.7 HOI on the image plane in the negative direction of the tangential fan after the shortest operation wavelength passing through the edge of the aperture; SLTA is a transverse aberration at 0.7 HOI on the image plane of a sagittal fan of the optical image capturing system after the longest operation wavelength passing through the edge of the aperture; SSTA is a transverse aberration at 0.7 HOI on the image plane of a sagittal fan after the shortest operation wavelength passing through the edge of the aperture.
 5. The optical image capturing system of claim 1, wherein the optical image capturing system further satisfies: 0.9≤ARS/EHD≤2.0; where, for any surface of any lens, EHD is a maximum effective half diameter thereof, ARS is a profile curve length measured from a start point where the optical axis passes therethrough, along a surface profile thereof, and finally to an end point of the maximum effective half diameter thereof.
 6. The optical image capturing system of claim 1, wherein the optical image capturing system further satisfies: IN12>IN45; wherein IN12 is a distance on the optical axis between the first lens and the second lens, and IN45 is a distance on the optical axis between the fourth lens and the fifth lens.
 7. The optical image capturing system of claim 1, wherein the optical image capturing system further satisfies: IN23>IN45; wherein IN23 is a distance on the optical axis between the second lens and the third lens, and IN45 is a distance on the optical axis between the fourth lens and the fifth lens.
 8. The optical image capturing system of claim 1, wherein the optical image capturing system further satisfies: IN34>IN45; wherein IN34 is a distance on the optical axis between the third lens and the fourth lens, and IN45 is a distance on the optical axis between the fourth lens and the fifth lens.
 9. The optical image capturing system of claim 1, further comprising an aperture, wherein the optical image capturing system further satisfies: 0.2≤InS/HOS≤1.1; wherein InS is a distance between the aperture and the image plane on the optical axis; HOS is a distance between an object-side surface of the first lens and the image plane specifically for infrared light on the optical axis.
 10. The optical image capturing system of claim 1, wherein at least one surface of at least one lens among the first lens to the fifth lens has at least an inflection point; and at least one lens among the first lens to the fifth lens has positive refractive power.
 11. The optical image capturing system of claim 10, wherein the optical image capturing system further satisfies: 0.9≤ARS/EHD≤2.0; wherein, for any surface of any lens, EHD is a maximum effective half diameter thereof, ARS is a profile curve length measured from a start point where the optical axis passes therethrough, along a surface profile thereof, and finally to an end point of the maximum effective half diameter thereof.
 12. The optical image capturing system of claim 10, wherein the optical image capturing system further satisfies: 0.5≤HOS/HOI≤3; wherein HOS is a distance between the object-side surface of the first lens and the image plane specifically for infrared light on the optical axis; HOI is a maximum height for image formation perpendicular to the optical axis on the image plane specifically for infrared light.
 13. The optical image capturing system of claim 10, further comprising an aperture disposed after the image-side surface of the first lens.
 14. The optical image capturing system of claim 10, wherein the image-side surface of the fourth lens is convex on the optical axis.
 15. The optical image capturing system of claim 10, the object-side surface of the fifth lens is concave on the optical axis, and the image-side surface of the fifth lens is convex on the optical axis.
 16. The optical image capturing system of claim 10, wherein the object-side surface of the second lens is convex on the optical axis.
 17. The optical image capturing system of claim 10, wherein the optical image capturing system further satisfies: 0.05≤ARE51/TP5≤25; and 0.05≤ARE52/TP5≤25; wherein ARE51 is a profile curve length measured from a start point where the optical axis passes the object-side surface of the fifth lens, along a surface profile of the object-side surface of the fifth lens, and finally to a coordinate point of a perpendicular distance where is a half of the entrance pupil diameter away from the optical axis; ARE52 is a profile curve length measured from a start point where the optical axis passes the image-side surface of the fifth lens, along a surface profile of the image-side surface of the fifth lens, and finally to a coordinate point of a perpendicular distance where is a half of the entrance pupil diameter away from the optical axis; TP5 is a thickness of the fifth lens on the optical axis.
 18. The optical image capturing system of claim 10, wherein the optical image capturing system further satisfies: 0.05≤ARE41/TP4≤25; and 0.05≤ARE42/TP4≤25; wherein ARE41 is a profile curve length measured from a start point where the optical axis passes the object-side surface of the fourth lens, along a surface profile of the object-side surface of the fourth lens, and finally to a coordinate point of a perpendicular distance where is a half of the entrance pupil diameter away from the optical axis; ARE42 is a profile curve length measured from a start point where the optical axis passes the image-side surface of the fourth lens, along a surface profile of the image-side surface of the fourth lens, and finally to a coordinate point of a perpendicular distance where is a half of the entrance pupil diameter away from the optical axis; TP4 is a thickness of the fourth lens on the optical axis.
 19. The optical image capturing system of claim 10, wherein the optical image capturing system further satisfies: 0.1≤(TP5+IN45)/TP4≤50; wherein TP4 is a central thickness of the fourth lens on the optical axis, TP5 is a central thickness of the fifth lens on the optical axis, and IN45 is a distance on the optical axis between the fourth lens and the fifth lens.
 20. The optical image capturing system of claim 1, wherein at least one surface of at least two lenses among the first lens to the fifth lens has at least an inflection point; and at least one lens among the first lens to the fifth lens has positive refractive power; wherein the optical image capturing system satisfies: 10 deg≤HAF≤50 deg; and 0.5≤HOS/HOI≤5; wherein HOS is a distance between an object-side surface of the first lens and the image plane specifically for infrared light on the optical axis; and HOI is a maximum height for image formation perpendicular to the optical axis on the image plane specifically for infrared light; for any surface of any lens.
 21. The optical image capturing system of claim 20, wherein the optical image capturing system further satisfies: 0 mm<HOS≤10 mm.
 22. The optical image capturing system of claim 20, wherein a wavelength of the infrared light ranges from 850 nm to 960 nm, and a first spatial frequency is denoted by SP1, which satisfies the following condition: SP1≤220 cycles/mm.
 23. The optical image capturing system of claim 20, wherein the first lens to the fifth lens are all made of plastic.
 24. The optical image capturing system of claim 20, wherein the optical image capturing system further satisfies: IN12>IN45; IN34>IN45; and IN23>IN45; wherein IN12 is a distance on the optical axis between the first lens and the second lens; IN23 is a distance on the optical axis between the second lens and the third lens; IN34 is a distance on the optical axis between the third lens and the fourth lens; IN45 is a distance on the optical axis between the fourth lens and the fifth lens.
 25. The optical image capturing system of claim 20, further comprising an aperture an image sensor, and a driving module, wherein the image sensor is disposed on the image plane specifically for infrared light; the driving module is coupled with the lenses to move the lenses; the optical image capturing system further satisfies: 0.2≤InS/HOS≤1.1; wherein InS is a distance between the aperture and the image plane specifically for infrared light on the optical axis. 